| /******************************************************************************* |
| * Copyright (c) 2000, 2006 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.search; |
| |
| import java.util.StringTokenizer; |
| |
| import org.eclipse.jdt.core.IField; |
| import org.eclipse.jdt.core.IImportDeclaration; |
| import org.eclipse.jdt.core.IMethod; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.ITypeParameter; |
| import org.eclipse.jdt.core.JavaModelException; |
| import org.eclipse.jdt.core.search.IJavaSearchConstants; |
| import org.eclipse.jdt.core.search.SearchMatch; |
| import org.eclipse.jdt.core.search.SearchPattern; |
| |
| import org.eclipse.jdt.ui.search.ElementQuerySpecification; |
| import org.eclipse.jdt.ui.search.PatternQuerySpecification; |
| import org.eclipse.jdt.ui.search.QuerySpecification; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| |
| abstract class MatchFilter { |
| |
| private static final String SETTINGS_LAST_USED_FILTERS= "filters_last_used"; //$NON-NLS-1$ |
| |
| public static MatchFilter[] getLastUsedFilters() { |
| String string= JavaPlugin.getDefault().getDialogSettings().get(SETTINGS_LAST_USED_FILTERS); |
| if (string != null && string.length() > 0) { |
| return decodeFiltersString(string); |
| } |
| return getDefaultFilters(); |
| } |
| |
| public static void setLastUsedFilters(MatchFilter[] filters) { |
| String encoded= encodeFilters(filters); |
| JavaPlugin.getDefault().getDialogSettings().put(SETTINGS_LAST_USED_FILTERS, encoded); |
| } |
| |
| public static MatchFilter[] getDefaultFilters() { |
| return new MatchFilter[] { IMPORT_FILTER }; |
| } |
| |
| private static String encodeFilters(MatchFilter[] enabledFilters) { |
| StringBuffer buf= new StringBuffer(); |
| buf.append(enabledFilters.length); |
| for (int i= 0; i < enabledFilters.length; i++) { |
| buf.append(';'); |
| buf.append(enabledFilters[i].getID()); |
| } |
| return buf.toString(); |
| } |
| |
| private static MatchFilter[] decodeFiltersString(String encodedString) { |
| StringTokenizer tokenizer= new StringTokenizer(encodedString, String.valueOf(';')); |
| int count= Integer.valueOf(tokenizer.nextToken()).intValue(); |
| MatchFilter[] res= new MatchFilter[count]; |
| for (int i= 0; i < count; i++) { |
| res[i]= findMatchFilter(tokenizer.nextToken()); |
| } |
| return res; |
| } |
| |
| |
| public abstract boolean isApplicable(JavaSearchQuery query); |
| |
| public abstract boolean filters(JavaElementMatch match); |
| |
| public abstract String getName(); |
| public abstract String getActionLabel(); |
| |
| public abstract String getDescription(); |
| |
| public abstract String getID(); |
| |
| private static final MatchFilter POTENTIAL_FILTER= new PotentialFilter(); |
| private static final MatchFilter IMPORT_FILTER= new ImportFilter(); |
| private static final MatchFilter JAVADOC_FILTER= new JavadocFilter(); |
| private static final MatchFilter READ_FILTER= new ReadFilter(); |
| private static final MatchFilter WRITE_FILTER= new WriteFilter(); |
| private static final MatchFilter INEXACT_FILTER= new InexactMatchFilter(); |
| private static final MatchFilter ERASURE_FILTER= new ErasureMatchFilter(); |
| |
| private static final MatchFilter[] ALL_FILTERS= new MatchFilter[] { |
| POTENTIAL_FILTER, |
| IMPORT_FILTER, |
| JAVADOC_FILTER, |
| READ_FILTER, |
| WRITE_FILTER, |
| INEXACT_FILTER, |
| ERASURE_FILTER |
| }; |
| |
| public static MatchFilter[] allFilters() { |
| return ALL_FILTERS; |
| } |
| |
| private static MatchFilter findMatchFilter(String id) { |
| for (int i= 0; i < ALL_FILTERS.length; i++) { |
| if (ALL_FILTERS[i].getID().equals(id)) |
| return ALL_FILTERS[i]; |
| } |
| return IMPORT_FILTER; // just return something, should not happen |
| } |
| |
| |
| } |
| |
| class PotentialFilter extends MatchFilter { |
| public boolean filters(JavaElementMatch match) { |
| return match.getAccuracy() == SearchMatch.A_INACCURATE; |
| } |
| |
| public String getName() { |
| return SearchMessages.MatchFilter_PotentialFilter_name; |
| } |
| |
| public String getActionLabel() { |
| return SearchMessages.MatchFilter_PotentialFilter_actionLabel; |
| } |
| |
| public String getDescription() { |
| return SearchMessages.MatchFilter_PotentialFilter_description; |
| } |
| |
| public boolean isApplicable(JavaSearchQuery query) { |
| return true; |
| } |
| |
| public String getID() { |
| return "filter_potential"; //$NON-NLS-1$ |
| } |
| } |
| |
| class ImportFilter extends MatchFilter { |
| public boolean filters(JavaElementMatch match) { |
| return match.getElement() instanceof IImportDeclaration; |
| } |
| |
| public String getName() { |
| return SearchMessages.MatchFilter_ImportFilter_name; |
| } |
| |
| public String getActionLabel() { |
| return SearchMessages.MatchFilter_ImportFilter_actionLabel; |
| } |
| |
| public String getDescription() { |
| return SearchMessages.MatchFilter_ImportFilter_description; |
| } |
| |
| public boolean isApplicable(JavaSearchQuery query) { |
| QuerySpecification spec= query.getSpecification(); |
| if (spec instanceof ElementQuerySpecification) { |
| ElementQuerySpecification elementSpec= (ElementQuerySpecification) spec; |
| return elementSpec.getElement() instanceof IType; |
| } else if (spec instanceof PatternQuerySpecification) { |
| PatternQuerySpecification patternSpec= (PatternQuerySpecification) spec; |
| return patternSpec.getSearchFor() == IJavaSearchConstants.TYPE; |
| } |
| return false; |
| } |
| |
| public String getID() { |
| return "filter_imports"; //$NON-NLS-1$ |
| } |
| } |
| |
| abstract class FieldFilter extends MatchFilter { |
| public boolean isApplicable(JavaSearchQuery query) { |
| QuerySpecification spec= query.getSpecification(); |
| if (spec instanceof ElementQuerySpecification) { |
| ElementQuerySpecification elementSpec= (ElementQuerySpecification) spec; |
| return elementSpec.getElement() instanceof IField; |
| } else if (spec instanceof PatternQuerySpecification) { |
| PatternQuerySpecification patternSpec= (PatternQuerySpecification) spec; |
| return patternSpec.getSearchFor() == IJavaSearchConstants.FIELD; |
| } |
| return false; |
| } |
| |
| } |
| |
| class WriteFilter extends FieldFilter { |
| public boolean filters(JavaElementMatch match) { |
| return match.isWriteAccess() && !match.isReadAccess(); |
| } |
| public String getName() { |
| return SearchMessages.MatchFilter_WriteFilter_name; |
| } |
| public String getActionLabel() { |
| return SearchMessages.MatchFilter_WriteFilter_actionLabel; |
| } |
| public String getDescription() { |
| return SearchMessages.MatchFilter_WriteFilter_description; |
| } |
| public String getID() { |
| return "filter_writes"; //$NON-NLS-1$ |
| } |
| } |
| |
| class ReadFilter extends FieldFilter { |
| public boolean filters(JavaElementMatch match) { |
| return match.isReadAccess() && !match.isWriteAccess(); |
| } |
| public String getName() { |
| return SearchMessages.MatchFilter_ReadFilter_name; |
| } |
| public String getActionLabel() { |
| return SearchMessages.MatchFilter_ReadFilter_actionLabel; |
| } |
| public String getDescription() { |
| return SearchMessages.MatchFilter_ReadFilter_description; |
| } |
| public String getID() { |
| return "filter_reads"; //$NON-NLS-1$ |
| } |
| } |
| |
| class JavadocFilter extends MatchFilter { |
| public boolean filters(JavaElementMatch match) { |
| return match.isJavadoc(); |
| } |
| public String getName() { |
| return SearchMessages.MatchFilter_JavadocFilter_name; |
| } |
| public String getActionLabel() { |
| return SearchMessages.MatchFilter_JavadocFilter_actionLabel; |
| } |
| public String getDescription() { |
| return SearchMessages.MatchFilter_JavadocFilter_description; |
| } |
| public boolean isApplicable(JavaSearchQuery query) { |
| return true; |
| } |
| public String getID() { |
| return "filter_javadoc"; //$NON-NLS-1$ |
| } |
| } |
| |
| abstract class GenericTypeFilter extends MatchFilter { |
| public boolean isApplicable(JavaSearchQuery query) { |
| QuerySpecification spec= query.getSpecification(); |
| if (spec instanceof ElementQuerySpecification) { |
| ElementQuerySpecification elementSpec= (ElementQuerySpecification) spec; |
| Object element= elementSpec.getElement(); |
| ITypeParameter[] typeParameters= null; |
| try { |
| if (element instanceof IType) { |
| typeParameters= ((IType)element).getTypeParameters(); |
| } else if (element instanceof IMethod) { |
| typeParameters= ((IMethod)element).getTypeParameters(); |
| } |
| } catch (JavaModelException e) { |
| return false; |
| } |
| return typeParameters != null && typeParameters.length > 0; |
| } |
| return false; |
| } |
| } |
| |
| class ErasureMatchFilter extends GenericTypeFilter { |
| public boolean filters(JavaElementMatch match) { |
| return (match.getMatchRule() & (SearchPattern.R_FULL_MATCH | SearchPattern.R_EQUIVALENT_MATCH)) == 0; |
| } |
| public String getName() { |
| return SearchMessages.MatchFilter_ErasureFilter_name; |
| } |
| public String getActionLabel() { |
| return SearchMessages.MatchFilter_ErasureFilter_actionLabel; |
| } |
| public String getDescription() { |
| return SearchMessages.MatchFilter_ErasureFilter_description; |
| } |
| public String getID() { |
| return "filter_erasure"; //$NON-NLS-1$ |
| } |
| } |
| |
| class InexactMatchFilter extends GenericTypeFilter { |
| public boolean filters(JavaElementMatch match) { |
| return (match.getMatchRule() & (SearchPattern.R_FULL_MATCH)) == 0; |
| } |
| public String getName() { |
| return SearchMessages.MatchFilter_InexactFilter_name; |
| } |
| public String getActionLabel() { |
| return SearchMessages.MatchFilter_InexactFilter_actionLabel; |
| } |
| public String getDescription() { |
| return SearchMessages.MatchFilter_InexactFilter_description; |
| } |
| public String getID() { |
| return "filter_inexact"; //$NON-NLS-1$ |
| } |
| } |
| |