net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/resourcesview/PHPProject.java

   1 package net.sourceforge.phpeclipse.resourcesview;
   2
   3 import java.io.ByteArrayInputStream;
   4 import java.io.InputStream;
   5 import java.util.ArrayList;
   6 import java.util.Iterator;
   7 import java.util.List;
   8
   9 import javax.xml.parsers.SAXParserFactory;
  10
  11 import net.sourceforge.phpeclipse.LoadPathEntry;
  12 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  13
  14 import org.eclipse.core.resources.IFile;
  15 import org.eclipse.core.resources.IProject;
  16 import org.eclipse.core.resources.IProjectNature;
  17 import org.eclipse.core.resources.IResource;
  18 import org.eclipse.core.runtime.CoreException;
  19 import org.eclipse.core.runtime.IPath;
  20 import org.eclipse.core.runtime.Path;
  21 import org.xml.sax.Attributes;
  22 import org.xml.sax.ContentHandler;
  23 import org.xml.sax.InputSource;
  24 import org.xml.sax.Locator;
  25 import org.xml.sax.SAXException;
  26 import org.xml.sax.XMLReader;
  27
  28 public class PHPProject implements IProjectNature, PHPElement {
  29         protected IProject fProject;
  30         protected List loadPathEntries;
  31         protected boolean scratched;
  32
  33         public PHPProject() {}
  34
  35         public void configure() throws CoreException {}
  36
  37         public void deconfigure() throws CoreException {}
  38
  39         public IProject getProject() {
  40                 return fProject;
  41         }
  42
  43         protected IProject getProject(String name) {
  44                 return PHPeclipsePlugin.getWorkspace().getRoot().getProject(name);
  45         }
  46
  47         public void setProject(IProject aProject) {
  48                 fProject = aProject;
  49         }
  50
  51         public void addLoadPathEntry(IProject anotherPHPProject) {
  52                 scratched = true;
  53
  54                 LoadPathEntry newEntry = new LoadPathEntry(anotherPHPProject);
  55                 getLoadPathEntries().add(newEntry);
  56         }
  57
  58         public void removeLoadPathEntry(IProject anotherPHPProject) {
  59                 Iterator entries = getLoadPathEntries().iterator();
  60                 while (entries.hasNext()) {
  61                         LoadPathEntry entry = (LoadPathEntry) entries.next();
  62                         if (entry.getType() == LoadPathEntry.TYPE_PROJECT && entry.getProject().getName().equals(anotherPHPProject.getName())) {
  63                                 getLoadPathEntries().remove(entry);
  64                                 scratched = true;
  65                                 break;
  66                         }
  67                 }
  68         }
  69
  70         public List getLoadPathEntries() {
  71                 if (loadPathEntries == null) {
  72                         loadLoadPathEntries();
  73                 }
  74
  75                 return loadPathEntries;
  76         }
  77
  78         public List getReferencedProjects() {
  79                 List referencedProjects = new ArrayList();
  80
  81                 Iterator iterator = getLoadPathEntries().iterator();
  82                 while (iterator.hasNext()) {
  83                         LoadPathEntry pathEntry = (LoadPathEntry) iterator.next();
  84                         if (pathEntry.getType() == LoadPathEntry.TYPE_PROJECT)
  85                                 referencedProjects.add(pathEntry.getProject());
  86                 }
  87
  88                 return referencedProjects;
  89         }
  90
  91         protected void loadLoadPathEntries() {
  92                 loadPathEntries = new ArrayList();
  93
  94                 IFile loadPathsFile = getLoadPathEntriesFile();
  95
  96                 XMLReader reader = null;
  97                 try {
  98                         reader = SAXParserFactory.newInstance().newSAXParser().getXMLReader();
  99                         reader.setContentHandler(getLoadPathEntriesContentHandler());
 100                         reader.parse(new InputSource(loadPathsFile.getContents()));
 101                 } catch (Exception e) {
 102                         //the file is nonextant or unreadable
 103                 }
 104         }
 105
 106         protected ContentHandler getLoadPathEntriesContentHandler() {
 107                 return new ContentHandler() {
 108                         public void characters(char[] arg0, int arg1, int arg2) throws SAXException {}
 109
 110                         public void endDocument() throws SAXException {}
 111
 112                         public void endElement(String arg0, String arg1, String arg2) throws SAXException {}
 113
 114                         public void endPrefixMapping(String arg0) throws SAXException {}
 115
 116                         public void ignorableWhitespace(char[] arg0, int arg1, int arg2) throws SAXException {}
 117
 118                         public void processingInstruction(String arg0, String arg1) throws SAXException {}
 119
 120                         public void setDocumentLocator(Locator arg0) {}
 121
 122                         public void skippedEntity(String arg0) throws SAXException {}
 123
 124                         public void startDocument() throws SAXException {}
 125
 126                         public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException {
 127                                 if ("pathentry".equals(qName))
 128                                         if ("project".equals(atts.getValue("type"))) {
 129                                                 IPath referencedProjectPath = new Path(atts.getValue("path"));
 130                                                 IProject referencedProject = getProject(referencedProjectPath.lastSegment());
 131                                                 loadPathEntries.add(new LoadPathEntry(referencedProject));
 132                                         }
 133                         }
 134
 135                         public void startPrefixMapping(String arg0, String arg1) throws SAXException {}
 136                 };
 137         }
 138
 139         protected IFile getLoadPathEntriesFile() {
 140                 return fProject.getFile(".loadpath");
 141         }
 142
 143         public void save() throws CoreException {
 144                 if (scratched) {
 145                         InputStream xmlPath = new ByteArrayInputStream(getLoadPathXML().getBytes());
 146                         IFile loadPathsFile = getLoadPathEntriesFile();
 147                         if (!loadPathsFile.exists())
 148                                 loadPathsFile.create(xmlPath, true, null);
 149                         else
 150                                 loadPathsFile.setContents(xmlPath, true, false, null);
 151
 152                         scratched = false;
 153                 }
 154         }
 155
 156         protected String getLoadPathXML() {
 157                 StringBuffer buffer = new StringBuffer();
 158                 buffer.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?><loadpath>");
 159
 160                 Iterator pathEntriesIterator = loadPathEntries.iterator();
 161
 162                 while (pathEntriesIterator.hasNext()) {
 163                         LoadPathEntry entry = (LoadPathEntry) pathEntriesIterator.next();
 164                         buffer.append(entry.toXML());
 165                 }
 166
 167                 buffer.append("</loadpath>");
 168                 return buffer.toString();
 169         }
 170
 171         public IResource getUnderlyingResource() {
 172                 return fProject;
 173         }
 174
 175 }