[Rubyeclipse-commit] SF.net SVN: rubyeclipse: [1787] trunk/org.rubypeople.rdt.launching

[<caw...@us...>]

Revision: 1787
          http://svn.sourceforge.net/rubyeclipse/?rev=1787&view=rev
Author:   cawilliams
Date:     2007-01-18 06:14:47 -0800 (Thu, 18 Jan 2007)

Log Message:
-----------


Modified Paths:
--------------
    trunk/org.rubypeople.rdt.launching/plugin.xml

Added Paths:
-----------
    trunk/org.rubypeople.rdt.launching/src/org/rubypeople/rdt/internal/launching/RubyVMContainer.java

Modified: trunk/org.rubypeople.rdt.launching/plugin.xml
===================================================================
--- trunk/org.rubypeople.rdt.launching/plugin.xml	2007-01-18 14:11:30 UTC (rev 1786)
+++ trunk/org.rubypeople.rdt.launching/plugin.xml	2007-01-18 14:14:47 UTC (rev 1787)
@@ -33,17 +33,17 @@
    </extension>
       <extension
          point="org.rubypeople.rdt.core.loadpathVariableInitializer">
-      <classpathVariableInitializer
+      <loadpathVariableInitializer
             variable="RUBY_LIB"
-            class="org.rubypeople.jdt.internal.launching.RubyLoadpathVariablesInitializer">
-      </classpathVariableInitializer>
+            class="org.rubypeople.rdt.internal.launching.RubyLoadpathVariablesInitializer">
+      </loadpathVariableInitializer>
    </extension>
    <extension
          point="org.rubypeople.rdt.core.loadpathContainerInitializer">
-      <classpathContainerInitializer
+      <loadpathContainerInitializer
             class="org.rubypeople.rdt.internal.launching.RubyContainerInitializer"
             id="org.rubypeople.rdt.launching.RUBY_CONTAINER">
-      </classpathContainerInitializer>
+      </loadpathContainerInitializer>
    </extension>
 
 </plugin>

Added: trunk/org.rubypeople.rdt.launching/src/org/rubypeople/rdt/internal/launching/RubyVMContainer.java
===================================================================
--- trunk/org.rubypeople.rdt.launching/src/org/rubypeople/rdt/internal/launching/RubyVMContainer.java	                        (rev 0)
+++ trunk/org.rubypeople.rdt.launching/src/org/rubypeople/rdt/internal/launching/RubyVMContainer.java	2007-01-18 14:14:47 UTC (rev 1787)
@@ -0,0 +1,100 @@
+package org.rubypeople.rdt.internal.launching;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.eclipse.core.runtime.IPath;
+import org.rubypeople.rdt.core.ILoadpathContainer;
+import org.rubypeople.rdt.core.ILoadpathEntry;
+import org.rubypeople.rdt.core.RubyCore;
+import org.rubypeople.rdt.launching.IInterpreter;
+import org.rubypeople.rdt.launching.IInterpreterInstallChangedListener;
+import org.rubypeople.rdt.launching.PropertyChangeEvent;
+
+public class RubyVMContainer implements ILoadpathContainer {
+
+	private static Map fgLoadpathEntries;
+	private IInterpreter fInterpreter;
+	private IPath fPath;
+
+	public RubyVMContainer(IInterpreter interpreter, IPath path) {
+		fInterpreter = interpreter;
+		fPath = path;
+	}
+
+	public String getDescription() {
+		return "Ruby System Library";
+	}
+
+	public ILoadpathEntry[] getLoadpathEntries() {
+		return getLoadpathEntries(fInterpreter);
+	}
+	
+	/**
+	 * Returns the loadpath entries associated with the given VM.
+	 * 
+	 * @param vm
+	 * @return loadpath entries
+	 */
+	private static ILoadpathEntry[] getLoadpathEntries(IInterpreter vm) {
+		if (fgLoadpathEntries == null) {
+			fgLoadpathEntries = new HashMap(10);
+			// add a listener to clear cached value when a VM changes or is removed
+			IInterpreterInstallChangedListener listener = new IInterpreterInstallChangedListener() {
+				public void defaultInterpreterInstallChanged(IInterpreter previous, IInterpreter current) {
+				}
+
+				public void interpreterChanged(PropertyChangeEvent event) {
+					if (event.getSource() != null) {
+						fgLoadpathEntries.remove(event.getSource());
+					}
+				}
+
+				public void interpreterAdded(IInterpreter newVm) {
+				}
+
+				public void interpreterRemoved(IInterpreter removedVm) {
+					fgLoadpathEntries.remove(removedVm);
+				}
+			};
+			RubyRuntime.addInterpreterInstallChangedListener(listener);
+		}
+		ILoadpathEntry[] entries = (ILoadpathEntry[])fgLoadpathEntries.get(vm);
+		if (entries == null) {
+			entries = computeLoadpathEntries(vm);
+			fgLoadpathEntries.put(vm, entries);
+		}
+		return entries;
+	}
+	
+	/**
+	 * Computes the loadpath entries associated with a VM - one entry per library.
+	 * 
+	 * @param vm
+	 * @return loadpath entries
+	 */
+	private static ILoadpathEntry[] computeLoadpathEntries(IInterpreter vm) {
+		IPath[] libs = vm.getLibraryLocations();
+		List entries = new ArrayList(libs.length);
+		for (int i = 0; i < libs.length; i++) {
+			entries.add(RubyCore.newLibraryEntry(libs[i], false));
+		}
+		return (ILoadpathEntry[])entries.toArray(new ILoadpathEntry[entries.size()]);		
+	}
+	
+	/**
+	 * @see ILoadpathContainer#getKind()
+	 */
+	public int getKind() {
+		return ILoadpathContainer.K_DEFAULT_SYSTEM;
+	}
+
+	/**
+	 * @see ILoadpathContainer#getPath()
+	 */
+	public IPath getPath() {
+		return fPath;
+	}
+}


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