| /* |
| * Copyright (c) OSGi Alliance (2010, 2011). All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.osgi.service.coordinator; |
| |
| import java.io.IOException; |
| import java.io.NotSerializableException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.io.ObjectStreamField; |
| import java.security.AccessController; |
| import java.security.BasicPermission; |
| import java.security.Permission; |
| import java.security.PermissionCollection; |
| import java.security.PrivilegedAction; |
| import java.security.cert.X509Certificate; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Enumeration; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.Filter; |
| import org.osgi.framework.FrameworkUtil; |
| import org.osgi.framework.InvalidSyntaxException; |
| |
| /** |
| * A bundle's authority to create or use a {@link Coordination}. |
| * |
| * <p> |
| * {@code CoordinationPermission} has three actions: {@code initiate}, |
| * {@code participate} and {@code admin}. |
| * |
| * @ThreadSafe |
| * @version $Id: e72248b8f838c2618ad9bf33f47f1757e84c1ff3 $ |
| */ |
| public class CoordinationPermission extends BasicPermission { |
| |
| private static final long serialVersionUID = 1L; |
| |
| /** |
| * The action string {@code initiate}. |
| */ |
| public final static String INITIATE = "initiate"; |
| /** |
| * The action string {@code participate}. |
| */ |
| public final static String PARTICIPATE = "participate"; |
| /** |
| * The action string {@code admin}. |
| */ |
| public final static String ADMIN = "admin"; |
| |
| private final static int ACTION_INITIATE = 0x00000001; |
| private final static int ACTION_PARTICIPATE = 0x00000002; |
| private final static int ACTION_ADMIN = 0x00000004; |
| private final static int ACTION_ALL = ACTION_INITIATE |
| | ACTION_PARTICIPATE |
| | ACTION_ADMIN; |
| final static int ACTION_NONE = 0; |
| |
| /** |
| * The actions mask. |
| */ |
| transient int action_mask; |
| |
| /** |
| * The actions in canonical form. |
| * |
| * @serial |
| */ |
| private volatile String actions = null; |
| |
| /** |
| * The bundle used by this CoordinationPermission. |
| */ |
| transient final Bundle bundle; |
| |
| /** |
| * If this CoordinationPermission was constructed with a filter, this holds |
| * a Filter matching object used to evaluate the filter in implies. |
| */ |
| transient Filter filter; |
| |
| /** |
| * This map holds the properties of the permission, used to match a filter |
| * in implies. This is not initialized until necessary, and then cached in |
| * this object. |
| */ |
| private transient volatile Map<String, Object> properties; |
| |
| /** |
| * Creates a new granted {@code CoordinationPermission} object. |
| * |
| * This constructor must only be used to create a permission that is going |
| * to be checked. |
| * <p> |
| * Examples: |
| * |
| * <pre> |
| * (coordination.name=com.acme.*) |
| * (&(signer=\*,o=ACME,c=US)(coordination.name=com.acme.*)) |
| * (signer=\*,o=ACME,c=US) |
| * </pre> |
| * |
| * <p> |
| * When a signer key is used within the filter expression the signer value |
| * must escape the special filter chars ('*', '(', ')'). |
| * <p> |
| * The name is specified as a filter expression. The filter gives access to |
| * the following attributes: |
| * <ul> |
| * <li>signer - A Distinguished Name chain used to sign the exporting |
| * bundle. Wildcards in a DN are not matched according to the filter string |
| * rules, but according to the rules defined for a DN chain.</li> |
| * <li>location - The location of the exporting bundle.</li> |
| * <li>id - The bundle ID of the exporting bundle.</li> |
| * <li>name - The symbolic name of the exporting bundle.</li> |
| * <li>coordination.name - The name of the requested coordination.</li> |
| * </ul> |
| * Filter attribute names are processed in a case sensitive manner. |
| * |
| * @param filter A filter expression. Filter attribute names are processed |
| * in a case sensitive manner. A special value of {@code "*"} can be |
| * used to match all Conditions. |
| * @param actions {@code admin}, {@code initiate} or {@code participate} |
| * (canonical order). |
| * @throws IllegalArgumentException If the filter has an invalid syntax. |
| */ |
| public CoordinationPermission(String filter, String actions) { |
| this(parseFilter(filter), parseActions(actions)); |
| } |
| |
| /** |
| * Creates a new requested {@code CoordinationPermission} object to be used |
| * by the code that must perform {@code checkPermission}. |
| * {@code CoordinationPermission} objects created with this constructor |
| * cannot be added to an {@code CoordinationPermission} permission |
| * collection. |
| * |
| * @param coordinationName The name of the requested Coordination |
| * @param coordinationBundle The bundle which |
| * {@link Coordination#getBundle() created} the requested |
| * Coordination. |
| * @param actions {@code admin}, {@code initiate} or {@code participate} |
| * (canonical order). |
| */ |
| public CoordinationPermission(String coordinationName, |
| Bundle coordinationBundle, String actions) { |
| super(coordinationName); |
| setTransients(null, parseActions(actions)); |
| this.bundle = coordinationBundle; |
| if (coordinationName == null) { |
| throw new NullPointerException("coordinationName must not be null"); |
| } |
| if (coordinationBundle == null) { |
| throw new NullPointerException( |
| "coordinationBundle must not be null"); |
| } |
| } |
| |
| /** |
| * Package private constructor used by CoordinationPermissionCollection. |
| * |
| * @param filter name filter |
| * @param mask action mask |
| */ |
| CoordinationPermission(Filter filter, int mask) { |
| super((filter == null) ? "*" : filter.toString()); |
| setTransients(filter, mask); |
| this.bundle = null; |
| } |
| |
| /** |
| * Called by constructors and when deserialized. |
| * |
| * @param filter Permission's filter or {@code null} for wildcard. |
| * @param mask action mask |
| */ |
| private void setTransients(Filter filter, int mask) { |
| this.filter = filter; |
| if ((mask == ACTION_NONE) || ((mask & ACTION_ALL) != mask)) { |
| throw new IllegalArgumentException("invalid action string"); |
| } |
| this.action_mask = mask; |
| } |
| |
| /** |
| * Parse action string into action mask. |
| * |
| * @param actions Action string. |
| * @return action mask. |
| */ |
| private static int parseActions(String actions) { |
| boolean seencomma = false; |
| |
| int mask = ACTION_NONE; |
| |
| if (actions == null) { |
| return mask; |
| } |
| |
| char[] a = actions.toCharArray(); |
| |
| int i = a.length - 1; |
| if (i < 0) |
| return mask; |
| |
| while (i != -1) { |
| char c; |
| |
| // skip whitespace |
| while ((i != -1) |
| && ((c = a[i]) == ' ' || c == '\r' || c == '\n' |
| || c == '\f' || c == '\t')) |
| i--; |
| |
| // check for the known strings |
| int matchlen; |
| |
| if (i >= 4 && (a[i - 4] == 'a' || a[i - 4] == 'A') |
| && (a[i - 3] == 'd' || a[i - 3] == 'D') |
| && (a[i - 2] == 'm' || a[i - 2] == 'M') |
| && (a[i - 1] == 'i' || a[i - 1] == 'I') |
| && (a[i] == 'n' || a[i] == 'N')) { |
| matchlen = 5; |
| mask |= ACTION_ADMIN; |
| |
| } |
| else |
| if (i >= 7 && (a[i - 7] == 'i' || a[i - 7] == 'I') |
| && (a[i - 6] == 'n' || a[i - 6] == 'N') |
| && (a[i - 5] == 'i' || a[i - 5] == 'I') |
| && (a[i - 4] == 't' || a[i - 4] == 'T') |
| && (a[i - 3] == 'i' || a[i - 3] == 'I') |
| && (a[i - 2] == 'a' || a[i - 2] == 'A') |
| && (a[i - 1] == 't' || a[i - 1] == 'T') |
| && (a[i] == 'e' || a[i] == 'E')) { |
| matchlen = 8; |
| mask |= ACTION_INITIATE; |
| |
| } |
| else { |
| if (i >= 10 && (a[i - 10] == 'p' || a[i - 10] == 'P') |
| && (a[i - 9] == 'a' || a[i - 9] == 'A') |
| && (a[i - 8] == 'r' || a[i - 8] == 'R') |
| && (a[i - 7] == 't' || a[i - 7] == 'T') |
| && (a[i - 6] == 'i' || a[i - 6] == 'I') |
| && (a[i - 5] == 'c' || a[i - 5] == 'C') |
| && (a[i - 4] == 'i' || a[i - 4] == 'I') |
| && (a[i - 3] == 'p' || a[i - 3] == 'P') |
| && (a[i - 2] == 'a' || a[i - 2] == 'A') |
| && (a[i - 1] == 't' || a[i - 1] == 'T') |
| && (a[i] == 'e' || a[i] == 'E')) { |
| matchlen = 11; |
| mask |= ACTION_PARTICIPATE; |
| |
| } |
| else { |
| // parse error |
| throw new IllegalArgumentException( |
| "invalid permission: " + actions); |
| } |
| } |
| |
| // make sure we didn't just match the tail of a word |
| // like "ackbarfadmin". Also, skip to the comma. |
| seencomma = false; |
| while (i >= matchlen && !seencomma) { |
| switch (a[i - matchlen]) { |
| case ',' : |
| seencomma = true; |
| /* FALLTHROUGH */ |
| case ' ' : |
| case '\r' : |
| case '\n' : |
| case '\f' : |
| case '\t' : |
| break; |
| default : |
| throw new IllegalArgumentException( |
| "invalid permission: " + actions); |
| } |
| i--; |
| } |
| |
| // point i at the location of the comma minus one (or -1). |
| i -= matchlen; |
| } |
| |
| if (seencomma) { |
| throw new IllegalArgumentException("invalid permission: " + actions); |
| } |
| |
| return mask; |
| } |
| |
| /** |
| * Parse filter string into a Filter object. |
| * |
| * @param filterString The filter string to parse. |
| * @return a Filter for this bundle. |
| * @throws IllegalArgumentException If the filter syntax is invalid. |
| */ |
| private static Filter parseFilter(String filterString) { |
| filterString = filterString.trim(); |
| if (filterString.equals("*")) { |
| return null; |
| } |
| try { |
| return FrameworkUtil.createFilter(filterString); |
| } |
| catch (InvalidSyntaxException e) { |
| IllegalArgumentException iae = new IllegalArgumentException( |
| "invalid filter"); |
| iae.initCause(e); |
| throw iae; |
| } |
| } |
| |
| /** |
| * Determines if the specified permission is implied by this object. |
| * |
| * <p> |
| * This method checks that the filter of the target is implied by the |
| * coordination name of this object. The list of |
| * {@code CoordinationPermission} actions must either match or allow for the |
| * list of the target object to imply the target |
| * {@code CoordinationPermission} action. |
| * <p> |
| * |
| * @param p The requested permission. |
| * @return {@code true} if the specified permission is implied by this |
| * object; {@code false} otherwise. |
| */ |
| public boolean implies(Permission p) { |
| if (!(p instanceof CoordinationPermission)) { |
| return false; |
| } |
| CoordinationPermission requested = (CoordinationPermission) p; |
| if (bundle != null) { |
| return false; |
| } |
| // if requested permission has a filter, then it is an invalid argument |
| if (requested.filter != null) { |
| return false; |
| } |
| return implies0(requested, ACTION_NONE); |
| } |
| |
| /** |
| * Internal implies method. Used by the implies and the permission |
| * collection implies methods. |
| * |
| * @param requested The requested CoordinationPermission which has already |
| * be validated as a proper argument. The requested |
| * CoordinationPermission must not have a filter expression. |
| * @param effective The effective actions with which to start. |
| * @return {@code true} if the specified permission is implied by this |
| * object; {@code false} otherwise. |
| */ |
| boolean implies0(CoordinationPermission requested, int effective) { |
| /* check actions first - much faster */ |
| effective |= action_mask; |
| final int desired = requested.action_mask; |
| if ((effective & desired) != desired) { |
| return false; |
| } |
| /* Get filter */ |
| Filter f = filter; |
| if (f == null) { |
| // it's "*" |
| return true; |
| } |
| return f.matches(requested.getProperties()); |
| } |
| |
| /** |
| * Returns the canonical string representation of the |
| * {@code CoordinationPermission} actions. |
| * |
| * <p> |
| * Always returns present {@code CoordinationPermission} actions in the |
| * following order: {@code admin}, {@code initiate}, {@code participate}. |
| * |
| * @return Canonical string representation of the |
| * {@code CoordinationPermission} actions. |
| */ |
| public String getActions() { |
| String result = actions; |
| if (result == null) { |
| StringBuffer sb = new StringBuffer(); |
| boolean comma = false; |
| |
| int mask = action_mask; |
| if ((mask & ACTION_ADMIN) == ACTION_ADMIN) { |
| sb.append(ADMIN); |
| comma = true; |
| } |
| |
| if ((mask & ACTION_INITIATE) == ACTION_INITIATE) { |
| if (comma) |
| sb.append(','); |
| sb.append(INITIATE); |
| comma = true; |
| } |
| |
| if ((mask & ACTION_PARTICIPATE) == ACTION_PARTICIPATE) { |
| if (comma) |
| sb.append(','); |
| sb.append(PARTICIPATE); |
| comma = true; |
| } |
| |
| actions = result = sb.toString(); |
| } |
| return result; |
| } |
| |
| /** |
| * Returns a new {@code PermissionCollection} object suitable for storing |
| * {@code CoordinationPermission} objects. |
| * |
| * @return A new {@code PermissionCollection} object. |
| */ |
| public PermissionCollection newPermissionCollection() { |
| return new CoordinationPermissionCollection(); |
| } |
| |
| /** |
| * Determines the equality of two {@code CoordinationPermission} objects. |
| * |
| * This method checks that specified permission has the same name and |
| * {@code CoordinationPermission} actions as this |
| * {@code CoordinationPermission} object. |
| * |
| * @param obj The object to test for equality with this |
| * {@code CoordinationPermission} object. |
| * @return {@code true} if {@code obj} is a {@code CoordinationPermission}, |
| * and has the same name and actions as this |
| * {@code CoordinationPermission} object; {@code false} otherwise. |
| */ |
| public boolean equals(Object obj) { |
| if (obj == this) { |
| return true; |
| } |
| |
| if (!(obj instanceof CoordinationPermission)) { |
| return false; |
| } |
| |
| CoordinationPermission cp = (CoordinationPermission) obj; |
| |
| return (action_mask == cp.action_mask) |
| && getName().equals(cp.getName()) |
| && ((bundle == cp.bundle) || ((bundle != null) && bundle |
| .equals(cp.bundle))); |
| } |
| |
| /** |
| * Returns the hash code value for this object. |
| * |
| * @return A hash code value for this object. |
| */ |
| public int hashCode() { |
| int h = 31 * 17 + getName().hashCode(); |
| h = 31 * h + getActions().hashCode(); |
| if (bundle != null) { |
| h = 31 * h + bundle.hashCode(); |
| } |
| return h; |
| } |
| |
| /** |
| * WriteObject is called to save the state of this permission object to a |
| * stream. The actions are serialized, and the superclass takes care of the |
| * name. |
| */ |
| private synchronized void writeObject(java.io.ObjectOutputStream s) |
| throws IOException { |
| if (bundle != null) { |
| throw new NotSerializableException("cannot serialize"); |
| } |
| // Write out the actions. The superclass takes care of the name |
| // call getActions to make sure actions field is initialized |
| if (actions == null) |
| getActions(); |
| s.defaultWriteObject(); |
| } |
| |
| /** |
| * readObject is called to restore the state of this permission from a |
| * stream. |
| */ |
| private synchronized void readObject(java.io.ObjectInputStream s) |
| throws IOException, ClassNotFoundException { |
| // Read in the action, then initialize the rest |
| s.defaultReadObject(); |
| setTransients(parseFilter(getName()), parseActions(actions)); |
| } |
| |
| /** |
| * Called by {@code <@link CoordinationPermission#implies(Permission)>}. |
| * This method is only called on a requested permission which cannot have a |
| * filter set. |
| * |
| * @return a map of properties for this permission. |
| */ |
| private Map<String, Object> getProperties() { |
| Map<String, Object> result = properties; |
| if (result != null) { |
| return result; |
| } |
| final Map<String, Object> map = new HashMap<String, Object>(5); |
| map.put("coordination.name", getName()); |
| if (bundle != null) { |
| AccessController.doPrivileged(new PrivilegedAction<Object>() { |
| public Object run() { |
| map.put("id", new Long(bundle.getBundleId())); |
| map.put("location", bundle.getLocation()); |
| String name = bundle.getSymbolicName(); |
| if (name != null) { |
| map.put("name", name); |
| } |
| SignerProperty signer = new SignerProperty(bundle); |
| if (signer.isBundleSigned()) { |
| map.put("signer", signer); |
| } |
| return null; |
| } |
| }); |
| } |
| return properties = map; |
| } |
| } |
| |
| /** |
| * Package private class used for filter matching on signer key during filter |
| * expression evaluation in the permission implies method. |
| * |
| * @Immutable |
| */ |
| final class SignerProperty { |
| private final Bundle bundle; |
| private final String pattern; |
| |
| /** |
| * String constructor used by the filter matching algorithm to construct |
| * a SignerProperty from the attribute value in a filter expression. |
| * |
| * @param pattern Attribute value in the filter expression. |
| */ |
| public SignerProperty(String pattern) { |
| this.pattern = pattern; |
| this.bundle = null; |
| } |
| |
| /** |
| * Used by the permission implies method to build the properties for a |
| * filter match. |
| * |
| * @param bundle The bundle whose signers are to be matched. |
| */ |
| SignerProperty(Bundle bundle) { |
| this.bundle = bundle; |
| this.pattern = null; |
| } |
| |
| /** |
| * Used by the filter matching algorithm. This methods does NOT satisfy |
| * the normal equals contract. Since the class is only used in filter |
| * expression evaluations, it only needs to support comparing an |
| * instance created with a Bundle to an instance created with a pattern |
| * string from the filter expression. |
| * |
| * @param o SignerProperty to compare against. |
| * @return true if the DN name chain matches the pattern. |
| */ |
| public boolean equals(Object o) { |
| if (!(o instanceof SignerProperty)) |
| return false; |
| SignerProperty other = (SignerProperty) o; |
| Bundle matchBundle = bundle != null ? bundle : other.bundle; |
| String matchPattern = bundle != null ? other.pattern : pattern; |
| Map<X509Certificate, List<X509Certificate>> signers = matchBundle |
| .getSignerCertificates(Bundle.SIGNERS_TRUSTED); |
| for (List<X509Certificate> signerCerts : signers.values()) { |
| List<String> dnChain = new ArrayList<String>(signerCerts.size()); |
| for (X509Certificate signerCert : signerCerts) { |
| dnChain.add(signerCert.getSubjectDN().getName()); |
| } |
| try { |
| if (FrameworkUtil.matchDistinguishedNameChain(matchPattern, |
| dnChain)) { |
| return true; |
| } |
| } |
| catch (IllegalArgumentException e) { |
| continue; // bad pattern |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Since the equals method does not obey the general equals contract, |
| * this method cannot generate hash codes which obey the equals |
| * contract. |
| */ |
| public int hashCode() { |
| return 31; |
| } |
| |
| /** |
| * Check if the bundle is signed. |
| * |
| * @return true if constructed with a bundle that is signed. |
| */ |
| boolean isBundleSigned() { |
| if (bundle == null) { |
| return false; |
| } |
| Map<X509Certificate, List<X509Certificate>> signers = bundle |
| .getSignerCertificates(Bundle.SIGNERS_TRUSTED); |
| return !signers.isEmpty(); |
| } |
| } |
| |
| /** |
| * Stores a set of {@code CoordinationPermission} permissions. |
| * |
| * @see java.security.Permission |
| * @see java.security.Permissions |
| * @see java.security.PermissionCollection |
| */ |
| |
| final class CoordinationPermissionCollection extends PermissionCollection { |
| static final long serialVersionUID = -3350758995234427603L; |
| /** |
| * Collection of permissions. |
| * |
| * @serial |
| * @GuardedBy this |
| */ |
| private Map<String, CoordinationPermission> permissions; |
| |
| /** |
| * Boolean saying if "*" is in the collection. |
| * |
| * @serial |
| * @GuardedBy this |
| */ |
| private boolean all_allowed; |
| |
| /** |
| * Create an empty CoordinationPermissions object. |
| */ |
| public CoordinationPermissionCollection() { |
| permissions = new HashMap<String, CoordinationPermission>(); |
| all_allowed = false; |
| } |
| |
| /** |
| * Adds a permission to this permission collection. |
| * |
| * @param permission The {@code CoordinationPermission} object to add. |
| * @throws IllegalArgumentException If the specified permission is not a |
| * {@code CoordinationPermission} instance or was constructed with a |
| * Bundle object. |
| * @throws SecurityException If this |
| * {@code CoordinationPermissionCollection} object has been marked |
| * read-only. |
| */ |
| public void add(final Permission permission) { |
| if (!(permission instanceof CoordinationPermission)) { |
| throw new IllegalArgumentException("invalid permission: " |
| + permission); |
| } |
| if (isReadOnly()) { |
| throw new SecurityException("attempt to add a Permission to a " |
| + "readonly PermissionCollection"); |
| } |
| |
| final CoordinationPermission cp = (CoordinationPermission) permission; |
| if (cp.bundle != null) { |
| throw new IllegalArgumentException("cannot add to collection: " |
| + cp); |
| } |
| |
| final String name = cp.getName(); |
| synchronized (this) { |
| Map<String, CoordinationPermission> pc = permissions; |
| final CoordinationPermission existing = pc.get(name); |
| if (existing != null) { |
| final int oldMask = existing.action_mask; |
| final int newMask = cp.action_mask; |
| if (oldMask != newMask) { |
| pc.put(name, new CoordinationPermission(existing.filter, |
| oldMask |
| | newMask)); |
| |
| } |
| } |
| else { |
| pc.put(name, cp); |
| } |
| |
| if (!all_allowed) { |
| if (name.equals("*")) { |
| all_allowed = true; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Determines if the specified permissions implies the permissions expressed |
| * in {@code permission}. |
| * |
| * @param permission The Permission object to compare with this |
| * {@code CoordinationPermission} object. |
| * @return {@code true} if {@code permission} is a proper subset of a |
| * permission in the set; {@code false} otherwise. |
| */ |
| public boolean implies(final Permission permission) { |
| if (!(permission instanceof CoordinationPermission)) { |
| return false; |
| } |
| final CoordinationPermission requested = (CoordinationPermission) permission; |
| /* if requested permission has a filter, then it is an invalid argument */ |
| if (requested.filter != null) { |
| return false; |
| } |
| |
| int effective = CoordinationPermission.ACTION_NONE; |
| |
| Collection<CoordinationPermission> perms; |
| synchronized (this) { |
| Map<String, CoordinationPermission> pc = permissions; |
| /* short circuit if the "*" Permission was added */ |
| if (all_allowed) { |
| CoordinationPermission cp = pc.get("*"); |
| if (cp != null) { |
| effective |= cp.action_mask; |
| final int desired = requested.action_mask; |
| if ((effective & desired) == desired) { |
| return true; |
| } |
| } |
| } |
| perms = pc.values(); |
| } |
| /* iterate one by one over filteredPermissions */ |
| for (CoordinationPermission perm : perms) { |
| if (perm.implies0(requested, effective)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Returns an enumeration of all {@code CoordinationPermission} objects in |
| * the container. |
| * |
| * @return Enumeration of all {@code CoordinationPermission} objects. |
| */ |
| public synchronized Enumeration<Permission> elements() { |
| List<Permission> all = new ArrayList<Permission>(permissions.values()); |
| return Collections.enumeration(all); |
| } |
| |
| /* serialization logic */ |
| private static final ObjectStreamField[] serialPersistentFields = { |
| new ObjectStreamField("permissions", HashMap.class), |
| new ObjectStreamField("all_allowed", Boolean.TYPE) }; |
| |
| private synchronized void writeObject(ObjectOutputStream out) |
| throws IOException { |
| ObjectOutputStream.PutField pfields = out.putFields(); |
| pfields.put("permissions", permissions); |
| pfields.put("all_allowed", all_allowed); |
| out.writeFields(); |
| } |
| |
| private synchronized void readObject(java.io.ObjectInputStream in) |
| throws IOException, ClassNotFoundException { |
| ObjectInputStream.GetField gfields = in.readFields(); |
| permissions = (HashMap<String, CoordinationPermission>) gfields.get( |
| "permissions", null); |
| all_allowed = gfields.get("all_allowed", false); |
| } |
| } |