/*******************************************************************************
* Copyright (c) 2010 Neil Bartlett.
* 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:
* Neil Bartlett - initial API and implementation
*******************************************************************************/
package bndtools.internal.pkgselection;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.search.SearchEngine;
import org.eclipse.jdt.core.search.SearchMatch;
import org.eclipse.jdt.core.search.SearchParticipant;
import org.eclipse.jdt.core.search.SearchPattern;
public class SearchUtils {
/**
* @param match
* @return the enclosing {@link IJavaElement}, or null iff none
*/
public static IJavaElement getEnclosingJavaElement(SearchMatch match) {
Object element = match.getElement();
if (element instanceof IJavaElement)
return (IJavaElement) element;
return null;
}
/**
* @param match
* @return the enclosing {@link ICompilationUnit} of the given match, or null iff none
*/
public static ICompilationUnit getCompilationUnit(SearchMatch match) {
IJavaElement enclosingElement = getEnclosingJavaElement(match);
if (enclosingElement != null) {
if (enclosingElement instanceof ICompilationUnit)
return (ICompilationUnit) enclosingElement;
ICompilationUnit cu = (ICompilationUnit) enclosingElement.getAncestor(IJavaElement.COMPILATION_UNIT);
if (cu != null)
return cu;
}
IJavaElement jElement = JavaCore.create(match.getResource());
if (jElement != null && jElement.exists() && jElement.getElementType() == IJavaElement.COMPILATION_UNIT)
return (ICompilationUnit) jElement;
return null;
}
public static SearchParticipant[] getDefaultSearchParticipants() {
return new SearchParticipant[] {
SearchEngine.getDefaultSearchParticipant()
};
}
/**
* Constant for use as matchRule in {@link SearchPattern#createPattern(IJavaElement, int, int)} to get search
* behavior as of 3.1M3 (all generic instantiations are found).
*/
public final static int GENERICS_AGNOSTIC_MATCH_RULE = SearchPattern.R_EXACT_MATCH | SearchPattern.R_CASE_SENSITIVE | SearchPattern.R_ERASURE_MATCH;
/**
* Returns whether the given pattern is a camel case pattern or not. <em>Note: this method does not consider the
* {@link SearchPattern#R_CAMELCASE_SAME_PART_COUNT_MATCH} variant.<em>
*
* @param pattern
* the pattern to inspect
* @return whether it is a camel case pattern or not
*/
public static boolean isCamelCasePattern(String pattern) {
return SearchPattern.validateMatchRule(pattern, SearchPattern.R_CAMELCASE_MATCH) == SearchPattern.R_CAMELCASE_MATCH;
}
}