svn commit: r986983 [3/3] - in /myfaces/extensions/scripting/branches/extscript-cdi: ./ src/ src/main/ src/main/java/ src/main/java/org/ src/main/java/org/apache/ src/main/java/org/apache/myfaces/ src/main/java/org/apache/myfaces/extensions/ src/main/j...

[bh...@apache.org]

Added: myfaces/extensions/scripting/branches/extscript-cdi/src/main/java/org/apache/myfaces/extensions/scripting/cdi/monitor/resources/file/FileSystemResourceResolver.java
URL: http://svn.apache.org/viewvc/myfaces/extensions/scripting/branches/extscript-cdi/src/main/java/org/apache/myfaces/extensions/scripting/cdi/monitor/resources/file/FileSystemResourceResolver.java?rev=986983&view=auto
==============================================================================
--- myfaces/extensions/scripting/branches/extscript-cdi/src/main/java/org/apache/myfaces/extensions/scripting/cdi/monitor/resources/file/FileSystemResourceResolver.java (added)
+++ myfaces/extensions/scripting/branches/extscript-cdi/src/main/java/org/apache/myfaces/extensions/scripting/cdi/monitor/resources/file/FileSystemResourceResolver.java Wed Aug 18 23:30:11 2010
@@ -0,0 +1,87 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.myfaces.extensions.scripting.cdi.monitor.resources.file;
+
+import org.apache.myfaces.extensions.scripting.cdi.monitor.resources.ResourceResolver;
+
+import java.io.File;
+
+/**
+ * 
+ */
+public class FileSystemResourceResolver implements ResourceResolver {
+
+    private File rootDirectory;
+
+    // ------------------------------------------ Constructors
+
+    public FileSystemResourceResolver(File rootDirectory) {
+        if (rootDirectory == null) {
+            throw new IllegalArgumentException(
+                    "The given root directory must not be null.");
+        }
+
+        this.rootDirectory = rootDirectory;
+    }
+
+    // ------------------------------------------ ResourceResolver methods
+
+    public void resolveResources(ResourceCallback resourceHandler) {
+        resolveResources(resourceHandler, rootDirectory);
+    }
+
+    private boolean resolveResources(ResourceCallback resourceHandler, File currentDirectory) {
+        File[] files = currentDirectory.listFiles();
+        if (files != null) {
+            for (File file : files) {
+                if (file.isDirectory()) {
+                    boolean shallContinue = resolveResources(resourceHandler, file);
+                    if (!shallContinue) {
+                        return false;
+                    }
+                } else {
+                    if (matches(file)) {
+                        boolean shallContinue = resourceHandler.handle(new FileSystemResource(file));
+                        if (!shallContinue) {
+                            return true;
+                        }
+                    }
+                }
+            }
+        }
+
+        return true;
+    }
+
+    // ------------------------------------------ Utility methods
+
+    /**
+     * <p>Template method that enables subclasses to filter files, which means depending on the
+     * boolean value that this method returns, the given file will be processed or not (which
+     * again means, it will be forwarded to the resource handler).</p>
+     * 
+     * @param file the file you may want to filter
+     * 
+     * @return <code>true</code> if this file should be processed, <code>false</code> otherwise
+     */
+    protected boolean matches(File file) {
+        return true;
+    }
+    
+}
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Added: myfaces/extensions/scripting/branches/extscript-cdi/src/main/java/org/apache/myfaces/extensions/scripting/cdi/monitor/resources/file/SuffixFileSystemResourceResolver.java
URL: http://svn.apache.org/viewvc/myfaces/extensions/scripting/branches/extscript-cdi/src/main/java/org/apache/myfaces/extensions/scripting/cdi/monitor/resources/file/SuffixFileSystemResourceResolver.java?rev=986983&view=auto
==============================================================================
--- myfaces/extensions/scripting/branches/extscript-cdi/src/main/java/org/apache/myfaces/extensions/scripting/cdi/monitor/resources/file/SuffixFileSystemResourceResolver.java (added)
+++ myfaces/extensions/scripting/branches/extscript-cdi/src/main/java/org/apache/myfaces/extensions/scripting/cdi/monitor/resources/file/SuffixFileSystemResourceResolver.java Wed Aug 18 23:30:11 2010
@@ -0,0 +1,73 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.myfaces.extensions.scripting.cdi.monitor.resources.file;
+
+import java.io.File;
+
+/**
+ *
+ */
+public class SuffixFileSystemResourceResolver extends FileSystemResourceResolver {
+
+    /**
+     * The file suffix that a file must have such that
+     * this resource resolver takes it into consideration.
+     */
+    private String fileSuffix;
+
+    // ------------------------------------------ Constructors
+
+    /**
+     * <p>Constructs a new suffix-based FileSystemResourceResolver using the given root directory
+     * and the given file suffix. Note that this suffix determines whether this resource resolver
+     * will take any file into consideration or not, it depends on whether it ends with the given
+     * suffix. Even though you can use any suffix you want, you'll probably only use it for file
+     * types, like for example, ".java", ".class", or ".groovy".</p>
+     *
+     * @param rootDirectory the root directory, i.e. the directory where to start looking for files
+     * @param fileSuffix the file suffix that a file must have
+     */
+    public SuffixFileSystemResourceResolver(File rootDirectory, String fileSuffix) {
+        super(rootDirectory);
+
+        if (fileSuffix == null || fileSuffix.isEmpty()) {
+            throw new IllegalArgumentException(
+                    "The given file suffix must not be null.");
+        }
+
+        this.fileSuffix = fileSuffix;
+    }
+
+    // ------------------------------------------ FileSystemResourceResolver methods
+
+    /**
+     * <p>Checks whether the given file ends with the file suffix that
+     * has been supplied during construction.</p>
+     *
+     * @param file the file that the resource resolver wants to check
+     * 
+     * @return <code>true</code> if the given file ends with the desired
+     *          suffix, <code>false</code> otherwise
+     */
+    @Override
+    protected boolean matches(File file) {
+        return file.getName().endsWith(fileSuffix);
+    }
+    
+}
\ No newline at end of file

Added: myfaces/extensions/scripting/branches/extscript-cdi/src/main/java/org/apache/myfaces/extensions/scripting/cdi/utils/ClassLoaderUtils.java
URL: http://svn.apache.org/viewvc/myfaces/extensions/scripting/branches/extscript-cdi/src/main/java/org/apache/myfaces/extensions/scripting/cdi/utils/ClassLoaderUtils.java?rev=986983&view=auto
==============================================================================
--- myfaces/extensions/scripting/branches/extscript-cdi/src/main/java/org/apache/myfaces/extensions/scripting/cdi/utils/ClassLoaderUtils.java (added)
+++ myfaces/extensions/scripting/branches/extscript-cdi/src/main/java/org/apache/myfaces/extensions/scripting/cdi/utils/ClassLoaderUtils.java Wed Aug 18 23:30:11 2010
@@ -0,0 +1,143 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.myfaces.extensions.scripting.cdi.utils;
+
+import java.io.File;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * <p>Utility class for class loading purposes, e.g. to determine the classpath of a
+ * class loader hierarchy.</p>
+ */
+public class ClassLoaderUtils {
+
+    /**
+     * The logger instance for this class.
+     */
+    private static final Logger logger = Logger.getLogger(ClassLoaderUtils.class.getName());
+
+    // ------------------------------------------ Public methods
+
+    /**
+     * <p>Returns the default class loader to use.</p>
+     *
+     * @return the default class loader to use
+     */
+    public static ClassLoader getDefaultClassLoader() {
+        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
+        if (classLoader != null) {
+            return classLoader;
+        } else {
+            return ClassLoaderUtils.class.getClassLoader();
+        }
+    }
+
+    /**
+     * <p>Determines whether the given class is loadable by the given class loader.</p>
+     *
+     * @param className   the class you want to check
+     * @param classLoader the class loader to use for that check
+     * @return <code>true</code>, if the given class is loadable by the given class loader
+     */
+    public static boolean isClassAvailable(String className, ClassLoader classLoader) {
+        try {
+            classLoader.loadClass(className);
+            return true;
+        }
+        catch (Throwable ex) {
+            return false;
+        }
+    }
+
+    /**
+     * <p>Resolves the classpath by walking up the hierachy of class loaders. Assuming
+     * that we're only dealing with URLClassLoaders it's possible to determine the
+     * classpath. This method, however, returns the classpath as a String, where each
+     * classpath entry is separated by a ';', i.e. it returns the classpath in a format
+     * that Java tools usually expect it to be.</p>
+     * <p/>
+     * it also adds the additional classpaths issued by our configuration to the list
+     *
+     * @param classLoader the class loader which you want to resolve the class path for
+     * @return the final classpath
+     */
+    public static String buildClasspath(ClassLoader classLoader) {
+        StringBuffer classpath = new StringBuffer();
+
+        URL[] urls = resolveClasspath(classLoader);
+        for (URL url : urls) {
+            classpath.append(url.getPath());
+
+            // Note that the classpath separator character is platform
+            // dependent. On Windows systems it's ";" whereas on other
+            // UNIX systems it's ":".
+            classpath.append(File.pathSeparatorChar);
+        }
+
+        String retVal = classpath.toString();
+        if (retVal.endsWith(File.pathSeparator)) {
+            retVal = retVal.substring(0, retVal.length() - 1);
+        }
+        return retVal;
+    }
+
+    /**
+     * <p>Resolves the classpath by walking up the hierarchy of class loaders. Assuming
+     * that we're only dealing with URLClassLoaders it's possible to determine the
+     * classpath.</p>
+     *
+     * @param parent the class loader which you want to resolve the class path for
+     * @return the final classpath
+     */
+    public static URL[] resolveClasspath(ClassLoader parent) {
+        List<URL> classpath = new ArrayList<URL>();
+
+        ClassLoader classLoader = parent;
+        // Walk up the hierarchy of class loaders in order to determine the current classpath.
+        while (classLoader != null) {
+            if (classLoader instanceof URLClassLoader) {
+                URLClassLoader urlClassLoader = (URLClassLoader) classLoader;
+
+                URL[] urls = urlClassLoader.getURLs();
+                if (urls != null) {
+                    classpath.addAll(Arrays.asList(urls));
+                }
+            } else {
+                if (logger.isLoggable(Level.WARNING)) {
+                    logger.warning("Resolving the classpath of the classloader '" + parent + "' - One of its parent class"
+                            + " loaders is no URLClassLoader '" + classLoader + "', which means it's possible that"
+                            + " some classpath entries aren't in the final outcome of this method call.");
+                }
+            }
+
+            // Inspect the parent class loader next.
+            classLoader = classLoader.getParent();
+        }
+
+        return classpath.toArray(new URL[classpath.size()]);
+    }
+
+}
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