net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/core/JavaProjectElementInfo.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.core;
  12
  13 import net.sourceforge.phpdt.core.IClasspathEntry;
  14 import net.sourceforge.phpdt.core.JavaModelException;
  15
  16 import org.eclipse.core.resources.IContainer;
  17 import org.eclipse.core.resources.IResource;
  18 import org.eclipse.core.runtime.CoreException;
  19 import org.eclipse.core.runtime.IPath;
  20
  21 /**
  22  * Info for IJavaProject.
  23  * <p>
  24  * Note: <code>getChildren()</code> returns all of the <code>IPackageFragmentRoots</code>
  25  * specified on the classpath for the project.  This can include roots external to the
  26  * project. See <code>JavaProject#getAllPackageFragmentRoots()</code> and
  27  * <code>JavaProject#getPackageFragmentRoots()</code>.  To get only the <code>IPackageFragmentRoots</code>
  28  * that are internal to the project, use <code>JavaProject#getChildren()</code>.
  29  */
  30
  31 /* package */
  32 class JavaProjectElementInfo extends OpenableElementInfo {
  33
  34         /**
  35          * The name lookup facility to use with this project.
  36          */
  37         protected NameLookup fNameLookup = null;
  38
  39         /**
  40          * The searchable builder environment facility used
  41          * with this project (doubles as the builder environment).
  42          */
  43         protected SearchableEnvironment fSearchableEnvironment = null;
  44
  45         /**
  46          * A array with all the non-java resources contained by this PackageFragment
  47          */
  48         private Object[] fNonJavaResources;
  49
  50         /**
  51          * Create and initialize a new instance of the receiver
  52          */
  53         public JavaProjectElementInfo() {
  54                 fNonJavaResources = null;
  55         }
  56
  57         /**
  58          * Compute the non-java resources contained in this java project.
  59          */
  60         private Object[] computeNonJavaResources(JavaProject project) {
  61
  62                 // determine if src == project and/or if bin == project
  63                 IPath projectPath = project.getProject().getFullPath();
  64                 boolean srcIsProject = false;
  65                 boolean binIsProject = false;
  66                 char[][] exclusionPatterns = null;
  67                 IClasspathEntry[] classpath = null;
  68                 IPath projectOutput = null;
  69                 try {
  70                         classpath = project.getResolvedClasspath(true/*ignore unresolved variable*/);
  71                         for (int i = 0; i < classpath.length; i++) {
  72                                 IClasspathEntry entry = classpath[i];
  73                                 if (projectPath.equals(entry.getPath())) {
  74                                         srcIsProject = true;
  75                                         exclusionPatterns = ((ClasspathEntry)entry).fullExclusionPatternChars();
  76                                         break;
  77                                 }
  78                         }
  79                         projectOutput = project.getOutputLocation();
  80                         binIsProject = projectPath.equals(projectOutput);
  81                 } catch (JavaModelException e) {
  82                         // ignore
  83                 }
  84
  85                 Object[] nonJavaResources = new IResource[5];
  86                 int nonJavaResourcesCounter = 0;
  87                 try {
  88                         IResource[] members = ((IContainer) project.getResource()).members();
  89                         for (int i = 0, max = members.length; i < max; i++) {
  90                                 IResource res = members[i];
  91                                 switch (res.getType()) {
  92                                         case IResource.FILE :
  93                                                 IPath resFullPath = res.getFullPath();
  94                                                 String resName = res.getName();
  95
  96                                                 // ignore a jar file on the classpath
  97 //                                              if (Util.isArchiveFileName(resName) && this.isClasspathEntryOrOutputLocation(resFullPath, classpath, projectOutput)) {
  98 //                                                      break;
  99 //                                              }
 100                                                 // ignore .java file if src == project
 101                                                 if (srcIsProject
 102 //                                                      && Util.isValidCompilationUnitName(resName)
 103                                                         && !Util.isExcluded(res, exclusionPatterns)) {
 104                                                         break;
 105                                                 }
 106                                                 // ignore .class file if bin == project
 107 //                                              if (binIsProject && Util.isValidClassFileName(resName)) {
 108 //                                                      break;
 109 //                                              }
 110                                                 // else add non java resource
 111                                                 if (nonJavaResources.length == nonJavaResourcesCounter) {
 112                                                         // resize
 113                                                         System.arraycopy(
 114                                                                 nonJavaResources,
 115                                                                 0,
 116                                                                 (nonJavaResources = new IResource[nonJavaResourcesCounter * 2]),
 117                                                                 0,
 118                                                                 nonJavaResourcesCounter);
 119                                                 }
 120                                                 nonJavaResources[nonJavaResourcesCounter++] = res;
 121                                                 break;
 122                                         case IResource.FOLDER :
 123                                                 resFullPath = res.getFullPath();
 124
 125                                                 // ignore non-excluded folders on the classpath or that correspond to an output location
 126                                                 if ((srcIsProject && !Util.isExcluded(res, exclusionPatterns) && Util.isValidFolderNameForPackage(res.getName()))
 127                                                                 || this.isClasspathEntryOrOutputLocation(resFullPath, classpath, projectOutput)) {
 128                                                         break;
 129                                                 }
 130                                                 // else add non java resource
 131                                                 if (nonJavaResources.length == nonJavaResourcesCounter) {
 132                                                         // resize
 133                                                         System.arraycopy(
 134                                                                 nonJavaResources,
 135                                                                 0,
 136                                                                 (nonJavaResources = new IResource[nonJavaResourcesCounter * 2]),
 137                                                                 0,
 138                                                                 nonJavaResourcesCounter);
 139                                                 }
 140                                                 nonJavaResources[nonJavaResourcesCounter++] = res;
 141                                 }
 142                         }
 143                         if (nonJavaResources.length != nonJavaResourcesCounter) {
 144                                 System.arraycopy(
 145                                         nonJavaResources,
 146                                         0,
 147                                         (nonJavaResources = new IResource[nonJavaResourcesCounter]),
 148                                         0,
 149                                         nonJavaResourcesCounter);
 150                         }
 151                 } catch (CoreException e) {
 152                         nonJavaResources = NO_NON_JAVA_RESOURCES;
 153                         nonJavaResourcesCounter = 0;
 154                 }
 155                 return nonJavaResources;
 156         }
 157
 158         /**
 159          * @see IJavaProject
 160          */
 161         protected NameLookup getNameLookup() {
 162
 163                 return fNameLookup;
 164         }
 165
 166         /**
 167          * Returns an array of non-java resources contained in the receiver.
 168          */
 169         Object[] getNonJavaResources(JavaProject project) {
 170
 171                 Object[] nonJavaResources = fNonJavaResources;
 172                 if (nonJavaResources == null) {
 173                         nonJavaResources = computeNonJavaResources(project);
 174                         fNonJavaResources = nonJavaResources;
 175                 }
 176                 return nonJavaResources;
 177         }
 178
 179         /**
 180          * @see IJavaProject
 181          */
 182         protected SearchableEnvironment getSearchableEnvironment() {
 183
 184                 return fSearchableEnvironment;
 185         }
 186         /*
 187          * Returns whether the given path is a classpath entry or an output location.
 188          */
 189         private boolean isClasspathEntryOrOutputLocation(IPath path, IClasspathEntry[] resolvedClasspath, IPath projectOutput) {
 190                 if (projectOutput.equals(path)) return true;
 191                 for (int i = 0, length = resolvedClasspath.length; i < length; i++) {
 192                         IClasspathEntry entry = resolvedClasspath[i];
 193                         if (entry.getPath().equals(path)) {
 194                                 return true;
 195                         }
 196                         IPath output;
 197                         if ((output = entry.getOutputLocation()) != null && output.equals(path)) {
 198                                 return true;
 199                         }
 200                 }
 201                 return false;
 202         }
 203
 204         protected void setNameLookup(NameLookup newNameLookup) {
 205
 206                 fNameLookup = newNameLookup;
 207
 208                 // Reinitialize the searchable name environment since it caches
 209                 // the name lookup.
 210                 fSearchableEnvironment = null;
 211         }
 212
 213         /**
 214          * Set the fNonJavaResources to res value
 215          */
 216         synchronized void setNonJavaResources(Object[] resources) {
 217
 218                 fNonJavaResources = resources;
 219         }
 220
 221         protected void setSearchableEnvironment(SearchableEnvironment newSearchableEnvironment) {
 222
 223                 fSearchableEnvironment = newSearchableEnvironment;
 224         }
 225 }