| /******************************************************************************* |
| * Copyright (c) 2003, 2020 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.osgi.internal.framework; |
| |
| import static java.util.Objects.requireNonNull; |
| |
| import java.lang.reflect.AccessibleObject; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Modifier; |
| import java.security.AccessController; |
| import java.security.PrivilegedAction; |
| import java.util.AbstractMap; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Dictionary; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import org.eclipse.osgi.framework.util.CaseInsensitiveDictionaryMap; |
| import org.eclipse.osgi.internal.debug.Debug; |
| import org.eclipse.osgi.internal.messages.Msg; |
| import org.eclipse.osgi.internal.serviceregistry.ServiceReferenceImpl; |
| import org.eclipse.osgi.util.NLS; |
| import org.osgi.framework.Constants; |
| import org.osgi.framework.Filter; |
| import org.osgi.framework.InvalidSyntaxException; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.framework.Version; |
| |
| /** |
| * RFC 1960-based Filter. Filter objects can be created by calling the |
| * constructor with the desired filter string. A Filter object can be called |
| * numerous times to determine if the match argument matches the filter string |
| * that was used to create the Filter object. |
| * <p> |
| * The syntax of a filter string is the string representation of LDAP search |
| * filters as defined in RFC 1960: <i>A String Representation of LDAP Search |
| * Filters</i> (available at http://www.ietf.org/rfc/rfc1960.txt). It should be |
| * noted that RFC 2254: <i>A String Representation of LDAP Search Filters</i> |
| * (available at http://www.ietf.org/rfc/rfc2254.txt) supersedes RFC 1960 but |
| * only adds extensible matching and is not applicable for this API. |
| * <p> |
| * The string representation of an LDAP search filter is defined by the |
| * following grammar. It uses a prefix format. |
| * |
| * <pre> |
| * <filter> ::= '(' <filtercomp> ')' |
| * <filtercomp> ::= <and> | <or> | <not> | <item> |
| * <and> ::= '&' <filterlist> |
| * <or> ::= '|' <filterlist> |
| * <not> ::= '!' <filter> |
| * <filterlist> ::= <filter> | <filter> <filterlist> |
| * <item> ::= <simple> | <present> | <substring> |
| * <simple> ::= <attr> <filtertype> <value> |
| * <filtertype> ::= <equal> | <approx> | <greater> | <less> |
| * <equal> ::= '=' |
| * <approx> ::= '˜=' |
| * <greater> ::= '>=' |
| * <less> ::= '<=' |
| * <present> ::= <attr> '=*' |
| * <substring> ::= <attr> '=' <initial> <any> <final> |
| * <initial> ::= NULL | <value> |
| * <any> ::= '*' <starval> |
| * <starval> ::= NULL | <value> '*' <starval> |
| * <final> ::= NULL | <value> |
| * </pre> |
| * |
| * {@code <attr>} is a string representing an attribute, or key, in the |
| * properties objects of the registered services. Attribute names are not case |
| * sensitive; that is cn and CN both refer to the same attribute. |
| * {@code <value>} is a string representing the value, or part of one, of |
| * a key in the properties objects of the registered services. If a |
| * {@code <value>} must contain one of the characters ' {@code *}' or |
| * '{@code (}' or '{@code )}', these characters should be escaped by preceding |
| * them with the backslash '{@code \}' character. Note that although both the |
| * {@code <substring>} and {@code <present>} productions can produce |
| * the {@code 'attr=*'} construct, this construct is used only to denote a |
| * presence filter. |
| * <p> |
| * Examples of LDAP filters are: |
| * |
| * <pre> |
| * "(cn=Babs Jensen)" |
| * "(!(cn=Tim Howes))" |
| * "(&(" + Constants.OBJECTCLASS + "=Person)(|(sn=Jensen)(cn=Babs J*)))" |
| * "(o=univ*of*mich*)" |
| * </pre> |
| * <p> |
| * The approximate match ({@code ~=}) is implementation specific but should at |
| * least ignore case and white space differences. Optional are codes like |
| * soundex or other smart "closeness" comparisons. |
| * <p> |
| * Comparison of values is not straightforward. Strings are compared differently |
| * than numbers and it is possible for a key to have multiple values. Note that |
| * that keys in the match argument must always be strings. The comparison is |
| * defined by the object type of the key's value. The following rules apply for |
| * comparison: <blockquote> |
| * <TABLE BORDER=0> |
| * <TR> |
| * <TD><b>Property Value Type </b></TD> |
| * <TD><b>Comparison Type</b></TD> |
| * </TR> |
| * <TR> |
| * <TD>String</TD> |
| * <TD>String comparison</TD> |
| * </TR> |
| * <TR valign=top> |
| * <TD>Integer, Long, Float, Double, Byte, Short, BigInteger, BigDecimal</TD> |
| * <TD>numerical comparison</TD> |
| * </TR> |
| * <TR> |
| * <TD>Character</TD> |
| * <TD>character comparison</TD> |
| * </TR> |
| * <TR> |
| * <TD>Boolean</TD> |
| * <TD>equality comparisons only</TD> |
| * </TR> |
| * <TR> |
| * <TD>[] (array)</TD> |
| * <TD>recursively applied to values</TD> |
| * </TR> |
| * <TR> |
| * <TD>Collection</TD> |
| * <TD>recursively applied to values</TD> |
| * </TR> |
| * </TABLE> |
| * Note: arrays of primitives are also supported. </blockquote> A filter matches |
| * a key that has multiple values if it matches at least one of those values. |
| * For example, |
| * |
| * <pre> |
| * Dictionary d = new Hashtable(); |
| * d.put("cn", new String[] { |
| * "a", "b", "c" |
| * }); |
| * </pre> |
| * |
| * d will match {@code (cn=a)} and also {@code (cn=b)} |
| * <p> |
| * A filter component that references a key having an unrecognizable data type |
| * will evaluate to {@code false} . |
| */ |
| public abstract class FilterImpl implements Filter { |
| /* normalized filter string for Filter object */ |
| private transient String filterString; |
| |
| /** |
| * Creates a {@link FilterImpl} object. This filter object may be used to |
| * match a {@link ServiceReference} or a Dictionary. |
| * <p> |
| * If the filter cannot be parsed, an {@link InvalidSyntaxException} will be |
| * thrown with a human readable message where the filter became unparsable. |
| * |
| * @param filterString the filter string. |
| * @throws InvalidSyntaxException If the filter parameter contains an |
| * invalid filter string that cannot be parsed. |
| */ |
| public static FilterImpl newInstance(String filterString) throws InvalidSyntaxException { |
| return newInstance(filterString, false); |
| } |
| |
| public static FilterImpl newInstance(String filterString, boolean debug) throws InvalidSyntaxException { |
| return new Parser(filterString, debug).parse(); |
| } |
| |
| FilterImpl() { |
| // empty constructor for subclasses |
| } |
| |
| /** |
| * Filter using a service's properties. |
| * <p> |
| * This {@code Filter} is executed using the keys and values of the |
| * referenced service's properties. The keys are looked up in a case |
| * insensitive manner. |
| * |
| * @param reference The reference to the service whose properties are used |
| * in the match. |
| * @return {@code true} if the service's properties match this |
| * {@code Filter}; {@code false} otherwise. |
| */ |
| @Override |
| public boolean match(ServiceReference<?> reference) { |
| return matches0((reference != null) ? ServiceReferenceMap.asMap(reference) : Collections.<String, Object> emptyMap()); |
| } |
| |
| /** |
| * Filter using a {@code Dictionary} with case insensitive key lookup. This |
| * {@code Filter} is executed using the specified {@code Dictionary}'s keys |
| * and values. The keys are looked up in a case insensitive manner. |
| * |
| * @param dictionary The {@code Dictionary} whose key/value pairs are used |
| * in the match. |
| * @return {@code true} if the {@code Dictionary}'s values match this |
| * filter; {@code false} otherwise. |
| * @throws IllegalArgumentException If {@code dictionary} contains case |
| * variants of the same key name. |
| */ |
| @Override |
| public boolean match(Dictionary<String, ?> dictionary) { |
| return matches0((dictionary != null) ? new CaseInsensitiveDictionaryMap<>(dictionary) : Collections.<String, Object> emptyMap()); |
| } |
| |
| /** |
| * Filter using a {@code Dictionary}. This {@code Filter} is executed using |
| * the specified {@code Dictionary}'s keys and values. The keys are looked |
| * up in a normal manner respecting case. |
| * |
| * @param dictionary The {@code Dictionary} whose key/value pairs are used |
| * in the match. |
| * @return {@code true} if the {@code Dictionary}'s values match this |
| * filter; {@code false} otherwise. |
| * @since 1.3 |
| */ |
| @Override |
| public boolean matchCase(Dictionary<String, ?> dictionary) { |
| return matches0((dictionary != null) ? DictionaryMap.asMap(dictionary) : Collections.<String, Object> emptyMap()); |
| } |
| |
| /** |
| * Filter using a {@code Map}. This {@code Filter} is executed using the |
| * specified {@code Map}'s keys and values. The keys are looked up in a |
| * normal manner respecting case. |
| * |
| * @param map The {@code Map} whose key/value pairs are used in the match. |
| * Maps with {@code null} key or values are not supported. A |
| * {@code null} value is considered not present to the filter. |
| * @return {@code true} if the {@code Map}'s values match this filter; |
| * {@code false} otherwise. |
| * @since 1.6 |
| */ |
| @Override |
| public boolean matches(Map<String, ?> map) { |
| return matches0((map != null) ? map : Collections.<String, Object> emptyMap()); |
| } |
| |
| abstract boolean matches0(Map<String, ?> map); |
| |
| /** |
| * Returns this {@code Filter}'s filter string. |
| * <p> |
| * The filter string is normalized by removing whitespace which does not |
| * affect the meaning of the filter. |
| * |
| * @return This {@code Filter}'s filter string. |
| */ |
| @Override |
| public String toString() { |
| String result = filterString; |
| if (result == null) { |
| filterString = result = normalize(new StringBuilder()).toString(); |
| } |
| return result; |
| } |
| |
| /** |
| * Returns this {@code Filter}'s normalized filter string. |
| * <p> |
| * The filter string is normalized by removing whitespace which does not |
| * affect the meaning of the filter. |
| * |
| * @return This {@code Filter}'s filter string. |
| */ |
| abstract StringBuilder normalize(StringBuilder sb); |
| |
| /** |
| * Compares this {@code Filter} to another {@code Filter}. |
| * <p> |
| * This implementation returns the result of calling |
| * {@code this.toString().equals(obj.toString()}. |
| * |
| * @param obj The object to compare against this {@code Filter}. |
| * @return If the other object is a {@code Filter} object, then returns the |
| * result of calling {@code this.toString().equals(obj.toString()}; |
| * {@code false} otherwise. |
| */ |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == this) { |
| return true; |
| } |
| |
| if (!(obj instanceof Filter)) { |
| return false; |
| } |
| |
| return this.toString().equals(obj.toString()); |
| } |
| |
| /** |
| * Returns the hashCode for this {@code Filter}. |
| * <p> |
| * This implementation returns the result of calling |
| * {@code this.toString().hashCode()}. |
| * |
| * @return The hashCode of this {@code Filter}. |
| */ |
| @Override |
| public int hashCode() { |
| return this.toString().hashCode(); |
| } |
| |
| static final class And extends FilterImpl { |
| private final FilterImpl[] operands; |
| |
| And(FilterImpl[] operands) { |
| this.operands = operands; |
| } |
| |
| @Override |
| boolean matches0(Map<String, ?> map) { |
| for (FilterImpl operand : operands) { |
| if (!operand.matches0(map)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| @Override |
| StringBuilder normalize(StringBuilder sb) { |
| sb.append('(').append('&'); |
| for (FilterImpl operand : operands) { |
| operand.normalize(sb); |
| } |
| return sb.append(')'); |
| } |
| |
| @Override |
| public String getPrimaryKeyValue(String primaryKey) { |
| // just checking for simple filters here where primaryKey is the only attr or it is one attr of a base '&' clause |
| // (primaryKey=org.acme.BrickService) OK |
| // (&(primaryKey=org.acme.BrickService)(|(vendor=IBM)(vendor=SUN))) OK |
| // (primaryKey=org.acme.*) NOT OK |
| // (|(primaryKey=org.acme.BrickService)(primaryKey=org.acme.CementService)) NOT OK |
| // (&(primaryKey=org.acme.BrickService)(primaryKey=org.acme.CementService)) OK but only the first primaryKey is returned |
| for (FilterImpl operand : operands) { |
| if (operand instanceof Equal) { |
| String result = operand.getPrimaryKeyValue(primaryKey); |
| if (result != null) { |
| return result; |
| } |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public List<FilterImpl> getChildren() { |
| return new ArrayList<>(Arrays.asList(operands)); |
| } |
| |
| @Override |
| void getAttributesInternal(List<String> results) { |
| for (FilterImpl operand : operands) { |
| operand.getAttributesInternal(results); |
| } |
| } |
| |
| @Override |
| void addAttributes(Map<String, String> attributes, Map<String, Range> versionAttrs, boolean not) { |
| for (FilterImpl operand : operands) { |
| operand.addAttributes(attributes, versionAttrs, false); |
| } |
| } |
| } |
| |
| static final class Or extends FilterImpl { |
| private final FilterImpl[] operands; |
| |
| Or(FilterImpl[] operands) { |
| this.operands = operands; |
| } |
| |
| @Override |
| boolean matches0(Map<String, ?> map) { |
| for (FilterImpl operand : operands) { |
| if (operand.matches0(map)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| StringBuilder normalize(StringBuilder sb) { |
| sb.append('(').append('|'); |
| for (FilterImpl operand : operands) { |
| operand.normalize(sb); |
| } |
| return sb.append(')'); |
| } |
| |
| @Override |
| public List<FilterImpl> getChildren() { |
| return new ArrayList<>(Arrays.asList(operands)); |
| } |
| |
| @Override |
| void getAttributesInternal(List<String> results) { |
| for (FilterImpl operand : operands) { |
| operand.getAttributesInternal(results); |
| } |
| } |
| |
| @Override |
| public Map<String, String> getStandardOSGiAttributes(String... versions) { |
| throw new IllegalArgumentException("Invalid filter for standard OSGi Attributes: OR"); //$NON-NLS-1$ |
| } |
| |
| @Override |
| void addAttributes(Map<String, String> attributes, Map<String, Range> versionAttrs, boolean not) { |
| throw new IllegalStateException("Invalid filter for standard OSGi requirements: OR"); //$NON-NLS-1$ |
| } |
| } |
| |
| static final class Not extends FilterImpl { |
| private final FilterImpl operand; |
| |
| Not(FilterImpl operand) { |
| this.operand = operand; |
| } |
| |
| @Override |
| boolean matches0(Map<String, ?> map) { |
| return !operand.matches0(map); |
| } |
| |
| @Override |
| StringBuilder normalize(StringBuilder sb) { |
| sb.append('(').append('!'); |
| operand.normalize(sb); |
| return sb.append(')'); |
| } |
| |
| @Override |
| void getAttributesInternal(List<String> results) { |
| operand.getAttributesInternal(results); |
| } |
| |
| @Override |
| public Map<String, String> getStandardOSGiAttributes(String... versions) { |
| throw new IllegalArgumentException("Invalid filter for standard OSGi Attributes: NOT"); //$NON-NLS-1$ |
| } |
| |
| @Override |
| void addAttributes(Map<String, String> attributes, Map<String, Range> versionAttrs, boolean not) { |
| operand.addAttributes(attributes, versionAttrs, true); |
| } |
| } |
| |
| static abstract class Item extends FilterImpl { |
| /** debug mode */ |
| final boolean debug; |
| final String attr; |
| |
| Item(String attr, boolean debug) { |
| this.attr = attr; |
| this.debug = debug; |
| } |
| |
| @Override |
| boolean matches0(Map<String, ?> map) { |
| return compare(map.get(attr)); |
| } |
| |
| abstract String operation(); |
| |
| abstract String value(); |
| |
| private boolean compare(Object value1) { |
| if (debug) { |
| if (value1 == null) { |
| Debug.println("compare(" + value1 + "," + value() + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } else if (!(value1.getClass().isArray() || (value1 instanceof Collection<?>))) { |
| Debug.println(operation() + "(" + value1 + "," + value() + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| } |
| if (value1 == null) { |
| return false; |
| } |
| if (value1 instanceof String) { |
| return compare_String((String) value1); |
| } |
| if (value1 instanceof Version) { |
| return compare_Version((Version) value1); |
| } |
| |
| Class<?> clazz = value1.getClass(); |
| if (clazz.isArray()) { |
| Class<?> type = clazz.getComponentType(); |
| if (type.isPrimitive()) { |
| return compare_PrimitiveArray(type, value1); |
| } |
| return compare_ObjectArray((Object[]) value1); |
| } |
| if (value1 instanceof Collection<?>) { |
| return compare_Collection((Collection<?>) value1); |
| } |
| if (value1 instanceof Integer) { |
| return compare_Integer(((Integer) value1).intValue()); |
| } |
| if (value1 instanceof Long) { |
| return compare_Long(((Long) value1).longValue()); |
| } |
| if (value1 instanceof Byte) { |
| return compare_Byte(((Byte) value1).byteValue()); |
| } |
| if (value1 instanceof Short) { |
| return compare_Short(((Short) value1).shortValue()); |
| } |
| if (value1 instanceof Character) { |
| return compare_Character(((Character) value1).charValue()); |
| } |
| if (value1 instanceof Float) { |
| return compare_Float(((Float) value1).floatValue()); |
| } |
| if (value1 instanceof Double) { |
| return compare_Double(((Double) value1).doubleValue()); |
| } |
| if (value1 instanceof Boolean) { |
| return compare_Boolean(((Boolean) value1).booleanValue()); |
| } |
| if (value1 instanceof Comparable<?>) { |
| @SuppressWarnings("unchecked") |
| Comparable<Object> comparable = (Comparable<Object>) value1; |
| return compare_Comparable(comparable); |
| } |
| return compare_Unknown(value1); |
| } |
| |
| private boolean compare_Collection(Collection<?> collection) { |
| for (Object value1 : collection) { |
| if (compare(value1)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private boolean compare_ObjectArray(Object[] array) { |
| for (Object value1 : array) { |
| if (compare(value1)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private boolean compare_PrimitiveArray(Class<?> type, Object primarray) { |
| if (Integer.TYPE.isAssignableFrom(type)) { |
| int[] array = (int[]) primarray; |
| for (int value1 : array) { |
| if (debug) { |
| Debug.println(operation() + "(" + value1 + "," + value() + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| if (compare_Integer(value1)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| if (Long.TYPE.isAssignableFrom(type)) { |
| long[] array = (long[]) primarray; |
| for (long value1 : array) { |
| if (debug) { |
| Debug.println(operation() + "(" + value1 + "," + value() + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| if (compare_Long(value1)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| if (Byte.TYPE.isAssignableFrom(type)) { |
| byte[] array = (byte[]) primarray; |
| for (byte value1 : array) { |
| if (debug) { |
| Debug.println(operation() + "(" + value1 + "," + value() + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| if (compare_Byte(value1)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| if (Short.TYPE.isAssignableFrom(type)) { |
| short[] array = (short[]) primarray; |
| for (short value1 : array) { |
| if (debug) { |
| Debug.println(operation() + "(" + value1 + "," + value() + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| if (compare_Short(value1)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| if (Character.TYPE.isAssignableFrom(type)) { |
| char[] array = (char[]) primarray; |
| for (char value1 : array) { |
| if (debug) { |
| Debug.println(operation() + "(" + value1 + "," + value() + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| if (compare_Character(value1)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| if (Float.TYPE.isAssignableFrom(type)) { |
| float[] array = (float[]) primarray; |
| for (float value1 : array) { |
| if (debug) { |
| Debug.println(operation() + "(" + value1 + "," + value() + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| if (compare_Float(value1)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| if (Double.TYPE.isAssignableFrom(type)) { |
| double[] array = (double[]) primarray; |
| for (double value1 : array) { |
| if (debug) { |
| Debug.println(operation() + "(" + value1 + "," + value() + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| if (compare_Double(value1)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| if (Boolean.TYPE.isAssignableFrom(type)) { |
| boolean[] array = (boolean[]) primarray; |
| for (boolean value1 : array) { |
| if (debug) { |
| Debug.println(operation() + "(" + value1 + "," + value() + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| if (compare_Boolean(value1)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| return false; |
| } |
| |
| boolean compare_String(String string) { |
| return false; |
| } |
| |
| boolean compare_Version(Version value1) { |
| return false; |
| } |
| |
| boolean compare_Comparable(Comparable<Object> value1) { |
| return false; |
| } |
| |
| boolean compare_Unknown(Object value1) { |
| return false; |
| } |
| |
| boolean compare_Boolean(boolean boolval) { |
| return false; |
| } |
| |
| boolean compare_Byte(byte byteval) { |
| return false; |
| } |
| |
| boolean compare_Character(char charval) { |
| return false; |
| } |
| |
| boolean compare_Double(double doubleval) { |
| return false; |
| } |
| |
| boolean compare_Float(float floatval) { |
| return false; |
| } |
| |
| boolean compare_Integer(int intval) { |
| return false; |
| } |
| |
| boolean compare_Long(long longval) { |
| return false; |
| } |
| |
| boolean compare_Short(short shortval) { |
| return false; |
| } |
| |
| /** |
| * Encode the value string such that '(', '*', ')' and '\' are escaped. |
| * |
| * @param value unencoded value string. |
| */ |
| static StringBuilder encodeValue(StringBuilder sb, String value) { |
| for (int i = 0, len = value.length(); i < len; i++) { |
| char c = value.charAt(i); |
| switch (c) { |
| case '(' : |
| case '*' : |
| case ')' : |
| case '\\' : |
| sb.append('\\'); |
| // FALL-THROUGH |
| default : |
| sb.append(c); |
| break; |
| } |
| } |
| return sb; |
| } |
| |
| @Override |
| void getAttributesInternal(List<String> results) { |
| results.add(attr); |
| } |
| |
| @Override |
| void addAttributes(Map<String, String> attributes, Map<String, Range> versionAttrs, boolean not) { |
| attributes.put(attr, value()); |
| } |
| } |
| |
| static final class Present extends Item { |
| Present(String attr, boolean debug) { |
| super(attr, debug); |
| } |
| |
| @Override |
| boolean matches0(Map<String, ?> map) { |
| if (debug) { |
| Debug.println("PRESENT(" + attr + ")"); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| return map.get(attr) != null; |
| } |
| |
| @Override |
| String operation() { |
| return "PRESENT"; //$NON-NLS-1$ |
| } |
| |
| @Override |
| String value() { |
| return "*"; //$NON-NLS-1$ |
| } |
| |
| @Override |
| StringBuilder normalize(StringBuilder sb) { |
| return sb.append('(').append(attr).append('=').append('*').append(')'); |
| } |
| } |
| |
| static final class Substring extends Item { |
| final String[] substrings; |
| |
| Substring(String attr, String[] substrings, boolean debug) { |
| super(attr, debug); |
| this.substrings = substrings; |
| } |
| |
| @Override |
| String operation() { |
| return "SUBSTRING"; //$NON-NLS-1$ |
| } |
| |
| @Override |
| String value() { |
| return value(new StringBuilder()).toString(); |
| } |
| |
| @Override |
| boolean compare_String(String string) { |
| int pos = 0; |
| for (int i = 0, size = substrings.length; i < size; i++) { |
| String substr = substrings[i]; |
| if (i + 1 < size) /* if this is not that last substr */ { |
| if (substr == null) /* * */ { |
| String substr2 = substrings[i + 1]; |
| if (substr2 == null) /* ** */ |
| continue; /* ignore first star */ |
| /* xxx */ |
| if (debug) { |
| Debug.println("indexOf(\"" + substr2 + "\"," + pos + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| int index = string.indexOf(substr2, pos); |
| if (index == -1) { |
| return false; |
| } |
| pos = index + substr2.length(); |
| if (i + 2 < size) // if there are more |
| // substrings, increment |
| // over the string we just |
| // matched; otherwise need |
| // to do the last substr |
| // check |
| i++; |
| } else /* xxx */ { |
| int len = substr.length(); |
| if (debug) { |
| Debug.println("regionMatches(" + pos + ",\"" + substr + "\")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| if (string.regionMatches(pos, substr, 0, len)) { |
| pos += len; |
| } else { |
| return false; |
| } |
| } |
| } else /* last substr */ { |
| if (substr == null) /* * */ { |
| return true; |
| } |
| /* xxx */ |
| if (debug) { |
| Debug.println("regionMatches(" + pos + "," + substr + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| } |
| return string.endsWith(substr); |
| } |
| } |
| return true; |
| } |
| |
| @Override |
| StringBuilder normalize(StringBuilder sb) { |
| sb.append('(').append(attr).append('='); |
| return value(sb).append(')'); |
| } |
| |
| private StringBuilder value(StringBuilder sb) { |
| for (String substr : substrings) { |
| if (substr == null) /* * */ { |
| sb.append('*'); |
| } else /* xxx */ { |
| encodeValue(sb, substr); |
| } |
| } |
| return sb; |
| } |
| } |
| |
| static class Equal extends Item { |
| final String value; |
| |
| Equal(String attr, String value, boolean debug) { |
| super(attr, debug); |
| this.value = value; |
| } |
| |
| @Override |
| String operation() { |
| return "EQUAL"; //$NON-NLS-1$ |
| } |
| |
| @Override |
| String value() { |
| return value; |
| } |
| |
| boolean comparison(int compare) { |
| return compare == 0; |
| } |
| |
| @Override |
| boolean compare_String(String string) { |
| return comparison((string == value) ? 0 : string.compareTo(value)); |
| } |
| |
| @Override |
| boolean compare_Version(Version value1) { |
| try { |
| Version version2 = Version.valueOf(value); |
| return comparison(value1.compareTo(version2)); |
| } catch (Exception e) { |
| // if the valueOf or compareTo method throws an exception |
| return false; |
| } |
| } |
| |
| @Override |
| boolean compare_Boolean(boolean boolval) { |
| boolean boolval2 = Boolean.parseBoolean(value.trim()); |
| return comparison(Boolean.compare(boolval, boolval2)); |
| } |
| |
| @Override |
| boolean compare_Byte(byte byteval) { |
| byte byteval2; |
| try { |
| byteval2 = Byte.parseByte(value.trim()); |
| } catch (IllegalArgumentException e) { |
| return false; |
| } |
| return comparison(Byte.compare(byteval, byteval2)); |
| } |
| |
| @Override |
| boolean compare_Character(char charval) { |
| char charval2; |
| try { |
| charval2 = value.charAt(0); |
| } catch (IndexOutOfBoundsException e) { |
| return false; |
| } |
| return comparison(Character.compare(charval, charval2)); |
| } |
| |
| @Override |
| boolean compare_Double(double doubleval) { |
| double doubleval2; |
| try { |
| doubleval2 = Double.parseDouble(value.trim()); |
| } catch (IllegalArgumentException e) { |
| return false; |
| } |
| return comparison(Double.compare(doubleval, doubleval2)); |
| } |
| |
| @Override |
| boolean compare_Float(float floatval) { |
| float floatval2; |
| try { |
| floatval2 = Float.parseFloat(value.trim()); |
| } catch (IllegalArgumentException e) { |
| return false; |
| } |
| return comparison(Float.compare(floatval, floatval2)); |
| } |
| |
| @Override |
| boolean compare_Integer(int intval) { |
| int intval2; |
| try { |
| intval2 = Integer.parseInt(value.trim()); |
| } catch (IllegalArgumentException e) { |
| return false; |
| } |
| return comparison(Integer.compare(intval, intval2)); |
| } |
| |
| @Override |
| boolean compare_Long(long longval) { |
| long longval2; |
| try { |
| longval2 = Long.parseLong(value.trim()); |
| } catch (IllegalArgumentException e) { |
| return false; |
| } |
| return comparison(Long.compare(longval, longval2)); |
| } |
| |
| @Override |
| boolean compare_Short(short shortval) { |
| short shortval2; |
| try { |
| shortval2 = Short.parseShort(value.trim()); |
| } catch (IllegalArgumentException e) { |
| return false; |
| } |
| return comparison(Short.compare(shortval, shortval2)); |
| } |
| |
| @Override |
| boolean compare_Comparable(Comparable<Object> value1) { |
| Object value2 = valueOf(value1.getClass()); |
| if (value2 == null) { |
| return false; |
| } |
| try { |
| return comparison(value1.compareTo(value2)); |
| } catch (Exception e) { |
| // if the compareTo method throws an exception; return false |
| return false; |
| } |
| } |
| |
| @Override |
| boolean compare_Unknown(Object value1) { |
| Object value2 = valueOf(value1.getClass()); |
| if (value2 == null) { |
| return false; |
| } |
| try { |
| return value1.equals(value2); |
| } catch (Exception e) { |
| // if the equals method throws an exception; return false |
| return false; |
| } |
| } |
| |
| @Override |
| StringBuilder normalize(StringBuilder sb) { |
| sb.append('(').append(attr).append('='); |
| return encodeValue(sb, value).append(')'); |
| } |
| |
| Object valueOf(Class<?> target) { |
| do { |
| Method method; |
| try { |
| method = target.getMethod("valueOf", String.class); //$NON-NLS-1$ |
| } catch (NoSuchMethodException e) { |
| break; |
| } |
| if (Modifier.isStatic(method.getModifiers()) && target.isAssignableFrom(method.getReturnType())) { |
| setAccessible(method); |
| try { |
| return method.invoke(null, value.trim()); |
| } catch (Error e) { |
| throw e; |
| } catch (Throwable e) { |
| return null; |
| } |
| } |
| } while (false); |
| |
| do { |
| Constructor<?> constructor; |
| try { |
| constructor = target.getConstructor(String.class); |
| } catch (NoSuchMethodException e) { |
| break; |
| } |
| setAccessible(constructor); |
| try { |
| return constructor.newInstance(value.trim()); |
| } catch (Error e) { |
| throw e; |
| } catch (Throwable e) { |
| return null; |
| } |
| } while (false); |
| |
| return null; |
| } |
| |
| private static void setAccessible(final AccessibleObject accessible) { |
| if (!accessible.isAccessible()) { |
| AccessController.doPrivileged(new PrivilegedAction<Void>() { |
| @Override |
| public Void run() { |
| accessible.setAccessible(true); |
| return null; |
| } |
| }); |
| } |
| } |
| |
| @Override |
| public String getPrimaryKeyValue(String primaryKey) { |
| if (attr.equalsIgnoreCase(primaryKey)) { |
| return value; |
| } |
| return null; |
| } |
| |
| @Override |
| void addAttributes(Map<String, String> attributes, Map<String, Range> versionAttrs, boolean not) { |
| if (!versionAttrs.containsKey(attr)) { |
| attributes.put(attr, value); |
| } else { |
| // this is an exact range e.g. [value,value] |
| Range currentRange = versionAttrs.get(attr); |
| if (currentRange != null) { |
| if (not) { |
| // this is an expanded form of the filter, e.g.: |
| // [1.0,2.0) -> (&(version>=1.0)(version<=2.0)(!(version=2.0))) |
| currentRange.addExclude(Version.valueOf(value)); |
| } else { |
| throw new IllegalStateException("Invalid range for: " + attr); //$NON-NLS-1$ |
| } |
| } else { |
| currentRange = new Range(); |
| Version version = Version.valueOf(value); |
| currentRange.setLeft('[', version); |
| currentRange.setRight(']', version); |
| versionAttrs.put(attr, currentRange); |
| } |
| } |
| } |
| } |
| |
| static final class LessEqual extends Equal { |
| LessEqual(String attr, String value, boolean debug) { |
| super(attr, value, debug); |
| } |
| |
| @Override |
| String operation() { |
| return "LESS"; //$NON-NLS-1$ |
| } |
| |
| @Override |
| boolean comparison(int compare) { |
| return compare <= 0; |
| } |
| |
| @Override |
| StringBuilder normalize(StringBuilder sb) { |
| sb.append('(').append(attr).append('<').append('='); |
| return encodeValue(sb, value).append(')'); |
| } |
| |
| @Override |
| public String getPrimaryKeyValue(String primaryKey) { |
| return null; |
| } |
| |
| @Override |
| public Map<String, String> getStandardOSGiAttributes(String... versions) { |
| throw new IllegalArgumentException("Invalid filter for standard OSGi Attributes: " + operation()); //$NON-NLS-1$ |
| } |
| |
| @Override |
| void addAttributes(Map<String, String> attributes, Map<String, Range> versionAttrs, boolean not) { |
| if (!versionAttrs.containsKey(attr)) { |
| throw new IllegalStateException("Invalid attribute: " + attr); //$NON-NLS-1$ |
| } |
| Range currentRange = versionAttrs.get(attr); |
| if (currentRange == null) { |
| currentRange = new Range(); |
| versionAttrs.put(attr, currentRange); |
| } |
| if (not) { |
| // this must be a range start "(value" |
| if (!currentRange.setLeft('(', Version.valueOf(value))) { |
| throw new IllegalStateException("range start is already processed for attribute: " + attr); //$NON-NLS-1$ |
| } |
| } else { |
| // this must be a range end "value]" |
| if (!currentRange.setRight(']', Version.valueOf(value))) { |
| throw new IllegalStateException("range end is already processed for attribute: " + attr); //$NON-NLS-1$ |
| } |
| } |
| } |
| } |
| |
| static final class GreaterEqual extends Equal { |
| GreaterEqual(String attr, String value, boolean debug) { |
| super(attr, value, debug); |
| } |
| |
| @Override |
| String operation() { |
| return "GREATER"; //$NON-NLS-1$ |
| } |
| |
| @Override |
| boolean comparison(int compare) { |
| return compare >= 0; |
| } |
| |
| @Override |
| StringBuilder normalize(StringBuilder sb) { |
| sb.append('(').append(attr).append('>').append('='); |
| return encodeValue(sb, value).append(')'); |
| } |
| |
| @Override |
| public String getPrimaryKeyValue(String primaryKey) { |
| return null; |
| } |
| |
| @Override |
| public Map<String, String> getStandardOSGiAttributes(String... versions) { |
| throw new IllegalArgumentException("Invalid filter for standard OSGi Attributes: " + operation()); //$NON-NLS-1$ |
| } |
| |
| @Override |
| void addAttributes(Map<String, String> attributes, Map<String, Range> versionAttrs, boolean not) { |
| if (!versionAttrs.containsKey(attr)) { |
| throw new IllegalStateException("Invalid attribute: " + attr); //$NON-NLS-1$ |
| } |
| Range currentRange = versionAttrs.get(attr); |
| if (currentRange == null) { |
| currentRange = new Range(); |
| versionAttrs.put(attr, currentRange); |
| } |
| if (not) { |
| // this must be a range end "value)" |
| if (!currentRange.setRight(')', Version.valueOf(value))) { |
| throw new IllegalStateException("range end is already processed for attribute: " + attr); //$NON-NLS-1$ |
| } |
| } else { |
| // this must be a range start "[value" |
| if (!currentRange.setLeft('[', Version.valueOf(value))) { |
| throw new IllegalStateException("range start is already processed for attribute: " + attr); //$NON-NLS-1$ |
| } |
| } |
| } |
| } |
| |
| static final class Approx extends Equal { |
| final String approx; |
| |
| Approx(String attr, String value, boolean debug) { |
| super(attr, value, debug); |
| this.approx = approxString(value); |
| } |
| |
| @Override |
| String operation() { |
| return "APPROX"; //$NON-NLS-1$ |
| } |
| |
| @Override |
| String value() { |
| return approx; |
| } |
| |
| @Override |
| boolean compare_String(String string) { |
| string = approxString(string); |
| return string.equalsIgnoreCase(approx); |
| } |
| |
| @Override |
| boolean compare_Character(char charval) { |
| char charval2; |
| try { |
| charval2 = approx.charAt(0); |
| } catch (IndexOutOfBoundsException e) { |
| return false; |
| } |
| return (charval == charval2) || (Character.toUpperCase(charval) == Character.toUpperCase(charval2)) || (Character.toLowerCase(charval) == Character.toLowerCase(charval2)); |
| } |
| |
| @Override |
| StringBuilder normalize(StringBuilder sb) { |
| sb.append('(').append(attr).append('~').append('='); |
| return encodeValue(sb, approx).append(')'); |
| } |
| |
| /** |
| * Map a string for an APPROX (~=) comparison. This implementation |
| * removes white spaces. This is the minimum implementation allowed by |
| * the OSGi spec. |
| * |
| * @param input Input string. |
| * @return String ready for APPROX comparison. |
| */ |
| static String approxString(String input) { |
| boolean changed = false; |
| char[] output = input.toCharArray(); |
| int cursor = 0; |
| for (char c : output) { |
| if (Character.isWhitespace(c)) { |
| changed = true; |
| continue; |
| } |
| |
| output[cursor] = c; |
| cursor++; |
| } |
| |
| return changed ? new String(output, 0, cursor) : input; |
| } |
| |
| @Override |
| public String getPrimaryKeyValue(String primaryKey) { |
| return null; |
| } |
| |
| @Override |
| public Map<String, String> getStandardOSGiAttributes(String... versions) { |
| throw new IllegalArgumentException("Invalid filter for standard OSGi Attributes: " + operation()); //$NON-NLS-1$ |
| } |
| } |
| |
| /** |
| * Returns the leftmost required objectClass value for the filter to evaluate to true. |
| * |
| * @return The leftmost required objectClass value or null if none could be determined. |
| */ |
| public String getRequiredObjectClass() { |
| return getPrimaryKeyValue(Constants.OBJECTCLASS); |
| } |
| |
| /** |
| * Returns the leftmost required primary key value for the filter to evaluate to true. |
| * This is useful for indexing candidates to match against this filter. |
| * @param primaryKey the primary key |
| * @return The leftmost required primary key value or null if none could be determined. |
| */ |
| public String getPrimaryKeyValue(String primaryKey) { |
| // just checking for simple filters here where primaryKey is the only attr or it is one attr of a base '&' clause |
| // (primaryKey=org.acme.BrickService) OK |
| // (&(primaryKey=org.acme.BrickService)(|(vendor=IBM)(vendor=SUN))) OK |
| // (primaryKey=org.acme.*) NOT OK |
| // (|(primaryKey=org.acme.BrickService)(primaryKey=org.acme.CementService)) NOT OK |
| // (&(primaryKey=org.acme.BrickService)(primaryKey=org.acme.CementService)) OK but only the first objectClass is returned |
| return null; |
| } |
| |
| public List<FilterImpl> getChildren() { |
| return Collections.emptyList(); |
| } |
| |
| /** |
| * Returns all the attributes contained within this filter |
| * @return all the attributes contained within this filter |
| */ |
| public String[] getAttributes() { |
| List<String> results = new ArrayList<>(); |
| getAttributesInternal(results); |
| return results.toArray(new String[0]); |
| } |
| |
| abstract void getAttributesInternal(List<String> results); |
| |
| public Map<String, String> getStandardOSGiAttributes(String... versions) { |
| Map<String, String> result = new HashMap<>(); |
| Map<String, Range> versionAttrs = new HashMap<>(); |
| if (versions != null) { |
| for (String versionAttr : versions) { |
| versionAttrs.put(versionAttr, null); |
| } |
| } |
| addAttributes(result, versionAttrs, false); |
| for (Map.Entry<String, Range> entry : versionAttrs.entrySet()) { |
| Range range = entry.getValue(); |
| if (range != null) { |
| result.put(entry.getKey(), range.toString()); |
| } |
| } |
| |
| return result; |
| } |
| |
| abstract void addAttributes(Map<String, String> attributes, Map<String, Range> versionAttrs, boolean not); |
| |
| /** |
| * Parser class for OSGi filter strings. This class parses the complete |
| * filter string and builds a tree of FilterImpl objects rooted at the |
| * parent. |
| */ |
| static private final class Parser { |
| private final boolean debug; |
| private final String filterstring; |
| private final char[] filterChars; |
| private int pos; |
| |
| Parser(String filterstring, boolean debug) { |
| this.debug = debug; |
| this.filterstring = filterstring; |
| filterChars = filterstring.toCharArray(); |
| pos = 0; |
| } |
| |
| FilterImpl parse() throws InvalidSyntaxException { |
| FilterImpl filter; |
| try { |
| filter = parse_filter(); |
| } catch (ArrayIndexOutOfBoundsException e) { |
| throw new InvalidSyntaxException(Msg.FILTER_TERMINATED_ABRUBTLY, filterstring, e); |
| } |
| |
| if (pos != filterChars.length) { |
| throw new InvalidSyntaxException(NLS.bind(Msg.FILTER_TRAILING_CHARACTERS, filterstring.substring(pos)), filterstring); |
| } |
| return filter; |
| } |
| |
| private FilterImpl parse_filter() throws InvalidSyntaxException { |
| FilterImpl filter; |
| skipWhiteSpace(); |
| |
| if (filterChars[pos] != '(') { |
| throw new InvalidSyntaxException(NLS.bind(Msg.FILTER_MISSING_LEFTPAREN, filterstring.substring(pos)), filterstring); |
| } |
| |
| pos++; |
| |
| filter = parse_filtercomp(); |
| |
| skipWhiteSpace(); |
| |
| if (filterChars[pos] != ')') { |
| throw new InvalidSyntaxException(NLS.bind(Msg.FILTER_MISSING_RIGHTPAREN, filterstring.substring(pos)), filterstring); |
| } |
| |
| pos++; |
| |
| skipWhiteSpace(); |
| |
| return filter; |
| } |
| |
| private FilterImpl parse_filtercomp() throws InvalidSyntaxException { |
| skipWhiteSpace(); |
| |
| char c = filterChars[pos]; |
| |
| switch (c) { |
| case '&' : { |
| pos++; |
| return parse_and(); |
| } |
| case '|' : { |
| pos++; |
| return parse_or(); |
| } |
| case '!' : { |
| pos++; |
| return parse_not(); |
| } |
| } |
| return parse_item(); |
| } |
| |
| private FilterImpl parse_and() throws InvalidSyntaxException { |
| int lookahead = pos; |
| skipWhiteSpace(); |
| |
| if (filterChars[pos] != '(') { |
| pos = lookahead - 1; |
| return parse_item(); |
| } |
| |
| List<FilterImpl> operands = new ArrayList<>(10); |
| |
| while (filterChars[pos] == '(') { |
| FilterImpl child = parse_filter(); |
| operands.add(child); |
| } |
| |
| return new FilterImpl.And(operands.toArray(new FilterImpl[0])); |
| } |
| |
| private FilterImpl parse_or() throws InvalidSyntaxException { |
| int lookahead = pos; |
| skipWhiteSpace(); |
| |
| if (filterChars[pos] != '(') { |
| pos = lookahead - 1; |
| return parse_item(); |
| } |
| |
| List<FilterImpl> operands = new ArrayList<>(10); |
| |
| while (filterChars[pos] == '(') { |
| FilterImpl child = parse_filter(); |
| operands.add(child); |
| } |
| |
| return new FilterImpl.Or(operands.toArray(new FilterImpl[0])); |
| } |
| |
| private FilterImpl parse_not() throws InvalidSyntaxException { |
| int lookahead = pos; |
| skipWhiteSpace(); |
| |
| if (filterChars[pos] != '(') { |
| pos = lookahead - 1; |
| return parse_item(); |
| } |
| |
| FilterImpl child = parse_filter(); |
| |
| return new FilterImpl.Not(child); |
| } |
| |
| private FilterImpl parse_item() throws InvalidSyntaxException { |
| String attr = parse_attr(); |
| |
| skipWhiteSpace(); |
| |
| switch (filterChars[pos]) { |
| case '~' : { |
| if (filterChars[pos + 1] == '=') { |
| pos += 2; |
| return new FilterImpl.Approx(attr, parse_value(), debug); |
| } |
| break; |
| } |
| case '>' : { |
| if (filterChars[pos + 1] == '=') { |
| pos += 2; |
| return new FilterImpl.GreaterEqual(attr, parse_value(), debug); |
| } |
| break; |
| } |
| case '<' : { |
| if (filterChars[pos + 1] == '=') { |
| pos += 2; |
| return new FilterImpl.LessEqual(attr, parse_value(), debug); |
| } |
| break; |
| } |
| case '=' : { |
| if (filterChars[pos + 1] == '*') { |
| int oldpos = pos; |
| pos += 2; |
| skipWhiteSpace(); |
| if (filterChars[pos] == ')') { |
| return new FilterImpl.Present(attr, debug); |
| } |
| pos = oldpos; |
| } |
| |
| pos++; |
| String[] substrings = parse_substring(); |
| |
| int length = substrings.length; |
| if (length == 0) { |
| return new FilterImpl.Equal(attr, "", debug); //$NON-NLS-1$ |
| } |
| if (length == 1) { |
| String single = substrings[0]; |
| if (single != null) { |
| return new FilterImpl.Equal(attr, single, debug); |
| } |
| } |
| return new FilterImpl.Substring(attr, substrings, debug); |
| } |
| } |
| |
| throw new InvalidSyntaxException(NLS.bind(Msg.FILTER_INVALID_OPERATOR, filterstring.substring(pos)), filterstring); |
| } |
| |
| private String parse_attr() throws InvalidSyntaxException { |
| skipWhiteSpace(); |
| |
| int begin = pos; |
| int end = pos; |
| |
| char c = filterChars[pos]; |
| |
| while (c != '~' && c != '<' && c != '>' && c != '=' && c != '(' && c != ')') { |
| pos++; |
| |
| if (!Character.isWhitespace(c)) { |
| end = pos; |
| } |
| |
| c = filterChars[pos]; |
| } |
| |
| int length = end - begin; |
| |
| if (length == 0) { |
| throw new InvalidSyntaxException(NLS.bind(Msg.FILTER_MISSING_ATTR, filterstring.substring(pos)), filterstring); |
| } |
| |
| return new String(filterChars, begin, length); |
| } |
| |
| private String parse_value() throws InvalidSyntaxException { |
| StringBuilder sb = new StringBuilder(filterChars.length - pos); |
| |
| parseloop: while (true) { |
| char c = filterChars[pos]; |
| |
| switch (c) { |
| case ')' : { |
| break parseloop; |
| } |
| |
| case '(' : { |
| throw new InvalidSyntaxException(NLS.bind(Msg.FILTER_INVALID_VALUE, filterstring.substring(pos)), filterstring); |
| } |
| |
| case '\\' : { |
| pos++; |
| c = filterChars[pos]; |
| /* fall through into default */ |
| } |
| |
| default : { |
| sb.append(c); |
| pos++; |
| break; |
| } |
| } |
| } |
| |
| if (sb.length() == 0) { |
| throw new InvalidSyntaxException(NLS.bind(Msg.FILTER_MISSING_VALUE, filterstring.substring(pos)), filterstring); |
| } |
| |
| return sb.toString(); |
| } |
| |
| private String[] parse_substring() throws InvalidSyntaxException { |
| StringBuilder sb = new StringBuilder(filterChars.length - pos); |
| |
| List<String> operands = new ArrayList<>(10); |
| |
| parseloop: while (true) { |
| char c = filterChars[pos]; |
| |
| switch (c) { |
| case ')' : { |
| if (sb.length() > 0) { |
| operands.add(sb.toString()); |
| } |
| |
| break parseloop; |
| } |
| |
| case '(' : { |
| throw new InvalidSyntaxException(NLS.bind(Msg.FILTER_INVALID_VALUE, filterstring.substring(pos)), filterstring); |
| } |
| |
| case '*' : { |
| if (sb.length() > 0) { |
| operands.add(sb.toString()); |
| } |
| |
| sb.setLength(0); |
| |
| operands.add(null); |
| pos++; |
| |
| break; |
| } |
| |
| case '\\' : { |
| pos++; |
| c = filterChars[pos]; |
| /* fall through into default */ |
| } |
| |
| default : { |
| sb.append(c); |
| pos++; |
| break; |
| } |
| } |
| } |
| |
| return operands.toArray(new String[0]); |
| } |
| |
| private void skipWhiteSpace() { |
| for (int length = filterChars.length; (pos < length) && Character.isWhitespace(filterChars[pos]);) { |
| pos++; |
| } |
| } |
| } |
| |
| /** |
| * This Map is used for key lookup during filter |
| * evaluation. This Map implementation only supports the get operation using |
| * a String key as no other operations are used by the Filter |
| * implementation. |
| */ |
| private static final class DictionaryMap extends AbstractMap<String, Object> implements Map<String, Object> { |
| static Map<String, ?> asMap(Dictionary<String, ?> dictionary) { |
| if (dictionary instanceof Map) { |
| @SuppressWarnings("unchecked") |
| Map<String, ?> coerced = (Map<String, ?>) dictionary; |
| return coerced; |
| } |
| return new DictionaryMap(dictionary); |
| } |
| |
| private final Dictionary<String, ?> dictionary; |
| |
| /** |
| * Create a case insensitive map from the specified dictionary. |
| * |
| * @param dictionary |
| * @throws IllegalArgumentException If {@code dictionary} contains case |
| * variants of the same key name. |
| */ |
| DictionaryMap(Dictionary<String, ?> dictionary) { |
| this.dictionary = requireNonNull(dictionary); |
| } |
| |
| @Override |
| public Object get(Object key) { |
| return dictionary.get(key); |
| } |
| |
| @Override |
| public Set<Entry<String, Object>> entrySet() { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| |
| /** |
| * This Map is used for key lookup from a ServiceReference during filter |
| * evaluation. This Map implementation only supports the get operation using |
| * a String key as no other operations are used by the Filter |
| * implementation. |
| */ |
| private static final class ServiceReferenceMap extends AbstractMap<String, Object> implements Map<String, Object> { |
| static Map<String, ?> asMap(ServiceReference<?> reference) { |
| if (reference instanceof ServiceReferenceImpl) { |
| return ((ServiceReferenceImpl<?>) reference).getRegistration().getProperties(); |
| } |
| return new ServiceReferenceMap(reference); |
| } |
| |
| private final ServiceReference<?> reference; |
| |
| ServiceReferenceMap(ServiceReference<?> reference) { |
| this.reference = requireNonNull(reference); |
| } |
| |
| @Override |
| public Object get(Object key) { |
| return reference.getProperty((String) key); |
| } |
| |
| @Override |
| public Set<Entry<String, Object>> entrySet() { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| |
| static class Range { |
| private char leftRule = 0; |
| private Version leftVersion; |
| private Version rightVersion; |
| private char rightRule = 0; |
| private Collection<Version> excludes = new ArrayList<>(0); |
| |
| @Override |
| public String toString() { |
| if (rightVersion == null) { |
| return leftVersion.toString(); |
| } |
| return leftRule + leftVersion.toString() + ',' + rightVersion.toString() + rightRule; |
| } |
| |
| void addExclude(Version exclude) { |
| this.excludes.add(exclude); |
| setLeft(leftRule, leftVersion); |
| setRight(rightRule, rightVersion); |
| } |
| |
| boolean setLeft(char leftRule, Version leftVersion) { |
| if (this.leftVersion != null && this.leftVersion != leftVersion) |
| return false; |
| this.leftRule = excludes.contains(leftVersion) ? '(' : leftRule; |
| this.leftVersion = leftVersion; |
| return true; |
| } |
| |
| boolean setRight(char rightRule, Version rightVersion) { |
| if (this.rightVersion != null && this.rightVersion != rightVersion) |
| return false; |
| this.rightRule = excludes.contains(rightVersion) ? ')' : rightRule; |
| this.rightVersion = rightVersion; |
| return true; |
| } |
| } |
| |
| } |