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