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.IJavaProject;
  15 import net.sourceforge.phpdt.core.JavaModelException;
  16 import net.sourceforge.phpdt.internal.core.util.Util;
  17
  18 import org.eclipse.core.resources.IContainer;
  19 import org.eclipse.core.resources.IResource;
  20 import org.eclipse.core.runtime.CoreException;
  21 import org.eclipse.core.runtime.IPath;
  22
  23 /**
  24  * Info for IJavaProject.
  25  * <p>
  26  * Note: <code>getChildren()</code> returns all of the <code>IPackageFragmentRoots</code>
  27  * specified on the classpath for the project.  This can include roots external to the
  28  * project. See <code>JavaProject#getAllPackageFragmentRoots()</code> and
  29  * <code>JavaProject#getPackageFragmentRoots()</code>.  To get only the <code>IPackageFragmentRoots</code>
  30  * that are internal to the project, use <code>JavaProject#getChildren()</code>.
  31  */
  32
  33 /* package */
  34 class JavaProjectElementInfo extends OpenableElementInfo {
  35
  36         /**
  37          * The name lookup facility to use with this project.
  38          */
  39         protected NameLookup fNameLookup = null;
  40
  41         /**
  42          * The searchable builder environment facility used
  43          * with this project (doubles as the builder environment).
  44          */
  45         protected SearchableEnvironment fSearchableEnvironment = null;
  46
  47         /**
  48          * A array with all the non-java resources contained by this PackageFragment
  49          */
  50         private Object[] fNonJavaResources;
  51
  52         /**
  53          * Create and initialize a new instance of the receiver
  54          */
  55         public JavaProjectElementInfo() {
  56                 fNonJavaResources = null;
  57         }
  58
  59         /**
  60          * Compute the non-java resources contained in this java project.
  61          */
  62         private Object[] computeNonJavaResources(JavaProject project) {
  63
  64                 // determine if src == project and/or if bin == project
  65                 IPath projectPath = project.getProject().getFullPath();
  66                 boolean srcIsProject = false;
  67                 boolean binIsProject = false;
  68                 char[][] exclusionPatterns = null;
  69                 IClasspathEntry[] classpath = null;
  70                 IPath projectOutput = null;
  71                 try {
  72                         classpath = project.getResolvedClasspath(true/*ignore unresolved variable*/);
  73                         for (int i = 0; i < classpath.length; i++) {
  74                                 IClasspathEntry entry = classpath[i];
  75                                 if (projectPath.equals(entry.getPath())) {
  76                                         srcIsProject = true;
  77                                         exclusionPatterns = ((ClasspathEntry)entry).fullExclusionPatternChars();
  78                                         break;
  79                                 }
  80                         }
  81                         projectOutput = project.getOutputLocation();
  82                         binIsProject = projectPath.equals(projectOutput);
  83                 } catch (JavaModelException e) {
  84                         // ignore
  85                 }
  86
  87                 Object[] nonJavaResources = new IResource[5];
  88                 int nonJavaResourcesCounter = 0;
  89                 try {
  90                         IResource[] members = ((IContainer) project.getResource()).members();
  91                         for (int i = 0, max = members.length; i < max; i++) {
  92                                 IResource res = members[i];
  93                                 switch (res.getType()) {
  94                                         case IResource.FILE :
  95                                                 IPath resFullPath = res.getFullPath();
  96                                                 String resName = res.getName();
  97
  98                                                 // ignore a jar file on the classpath
  99 //                                              if (Util.isArchiveFileName(resName) && this.isClasspathEntryOrOutputLocation(resFullPath, classpath, projectOutput)) {
 100 //                                                      break;
 101 //                                              }
 102                                                 // ignore .java file if src == project
 103                                                 if (srcIsProject
 104 //                                                      && Util.isValidCompilationUnitName(resName)
 105                                                         && !Util.isExcluded(res, exclusionPatterns)) {
 106                                                         break;
 107                                                 }
 108                                                 // ignore .class file if bin == project
 109 //                                              if (binIsProject && Util.isValidClassFileName(resName)) {
 110 //                                                      break;
 111 //                                              }
 112                                                 // else add non java resource
 113                                                 if (nonJavaResources.length == nonJavaResourcesCounter) {
 114                                                         // resize
 115                                                         System.arraycopy(
 116                                                                 nonJavaResources,
 117                                                                 0,
 118                                                                 (nonJavaResources = new IResource[nonJavaResourcesCounter * 2]),
 119                                                                 0,
 120                                                                 nonJavaResourcesCounter);
 121                                                 }
 122                                                 nonJavaResources[nonJavaResourcesCounter++] = res;
 123                                                 break;
 124                                         case IResource.FOLDER :
 125                                                 resFullPath = res.getFullPath();
 126
 127                                                 // ignore non-excluded folders on the classpath or that correspond to an output location
 128                                                 if ((srcIsProject && !Util.isExcluded(res, exclusionPatterns) && Util.isValidFolderNameForPackage(res.getName()))
 129                                                                 || this.isClasspathEntryOrOutputLocation(resFullPath, classpath, projectOutput)) {
 130                                                         break;
 131                                                 }
 132                                                 // else add non java resource
 133                                                 if (nonJavaResources.length == nonJavaResourcesCounter) {
 134                                                         // resize
 135                                                         System.arraycopy(
 136                                                                 nonJavaResources,
 137                                                                 0,
 138                                                                 (nonJavaResources = new IResource[nonJavaResourcesCounter * 2]),
 139                                                                 0,
 140                                                                 nonJavaResourcesCounter);
 141                                                 }
 142                                                 nonJavaResources[nonJavaResourcesCounter++] = res;
 143                                 }
 144                         }
 145                         if (nonJavaResources.length != nonJavaResourcesCounter) {
 146                                 System.arraycopy(
 147                                         nonJavaResources,
 148                                         0,
 149                                         (nonJavaResources = new IResource[nonJavaResourcesCounter]),
 150                                         0,
 151                                         nonJavaResourcesCounter);
 152                         }
 153                 } catch (CoreException e) {
 154                         nonJavaResources = NO_NON_JAVA_RESOURCES;
 155                         nonJavaResourcesCounter = 0;
 156                 }
 157                 return nonJavaResources;
 158         }
 159
 160         /**
 161          * @see IJavaProject
 162          */
 163         protected NameLookup getNameLookup() {
 164
 165                 return fNameLookup;
 166         }
 167
 168         /**
 169          * Returns an array of non-java resources contained in the receiver.
 170          */
 171         Object[] getNonJavaResources(JavaProject project) {
 172
 173                 Object[] nonJavaResources = fNonJavaResources;
 174                 if (nonJavaResources == null) {
 175                         nonJavaResources = computeNonJavaResources(project);
 176                         fNonJavaResources = nonJavaResources;
 177                 }
 178                 return nonJavaResources;
 179         }
 180
 181         /**
 182          * @see IJavaProject
 183          */
 184         protected SearchableEnvironment getSearchableEnvironment() {
 185
 186                 return fSearchableEnvironment;
 187         }
 188         /*
 189          * Returns whether the given path is a classpath entry or an output location.
 190          */
 191         private boolean isClasspathEntryOrOutputLocation(IPath path, IClasspathEntry[] resolvedClasspath, IPath projectOutput) {
 192                 if (projectOutput.equals(path)) return true;
 193                 for (int i = 0, length = resolvedClasspath.length; i < length; i++) {
 194                         IClasspathEntry entry = resolvedClasspath[i];
 195                         if (entry.getPath().equals(path)) {
 196                                 return true;
 197                         }
 198                         IPath output;
 199                         if ((output = entry.getOutputLocation()) != null && output.equals(path)) {
 200                                 return true;
 201                         }
 202                 }
 203                 return false;
 204         }
 205
 206         protected void setNameLookup(NameLookup newNameLookup) {
 207
 208                 fNameLookup = newNameLookup;
 209
 210                 // Reinitialize the searchable name environment since it caches
 211                 // the name lookup.
 212                 fSearchableEnvironment = null;
 213         }
 214
 215         /**
 216          * Set the fNonJavaResources to res value
 217          */
 218         synchronized void setNonJavaResources(Object[] resources) {
 219
 220                 fNonJavaResources = resources;
 221         }
 222
 223         protected void setSearchableEnvironment(SearchableEnvironment newSearchableEnvironment) {
 224
 225                 fSearchableEnvironment = newSearchableEnvironment;
 226         }
 227 }