SMX4KNL-247: Running "find system" command leads to a stack overflow
git-svn-id: https://svn.apache.org/repos/asf/servicemix/smx4/kernel/trunk@757420 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/gshell/gshell-core/src/main/java/org/apache/geronimo/gshell/commands/shell/FindAction.java b/gshell/gshell-core/src/main/java/org/apache/geronimo/gshell/commands/shell/FindAction.java
new file mode 100644
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--- /dev/null
+++ b/gshell/gshell-core/src/main/java/org/apache/geronimo/gshell/commands/shell/FindAction.java
@@ -0,0 +1,208 @@
+/*
+ * 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.geronimo.gshell.commands.shell;
+
+import java.net.URI;
+
+import org.apache.commons.vfs.FileObject;
+import org.apache.commons.vfs.FileSelectInfo;
+import org.apache.commons.vfs.FileSelector;
+import org.apache.commons.vfs.FileSystemException;
+import org.apache.commons.vfs.FileType;
+import org.apache.geronimo.gshell.clp.Argument;
+import org.apache.geronimo.gshell.clp.Option;
+import org.apache.geronimo.gshell.command.CommandAction;
+import org.apache.geronimo.gshell.command.CommandContext;
+import org.apache.geronimo.gshell.io.IO;
+import org.apache.geronimo.gshell.vfs.FileObjects;
+import org.apache.geronimo.gshell.vfs.selector.AggregateFileSelector;
+import org.apache.geronimo.gshell.vfs.support.VfsActionSupport;
+import org.apache.oro.text.GlobCompiler;
+import org.apache.oro.text.regex.MalformedPatternException;
+import org.apache.oro.text.regex.Pattern;
+import org.apache.oro.text.regex.PatternCompiler;
+import org.apache.oro.text.regex.PatternMatcher;
+import org.apache.oro.text.regex.Perl5Matcher;
+
+/**
+ * Find files in a hierarchy.
+ *
+ * TODO: remove this file when gshell is upgraded
+ *
+ * @version $Rev: 722797 $ $Date: 2008-12-03 08:18:16 +0100 (Wed, 03 Dec 2008) $
+ */
+public class FindAction
+ extends VfsActionSupport
+{
+ private final AggregateFileSelector selector = new AggregateFileSelector();
+
+ @Option(name="-name")
+ private void addNameFilter(final String name) throws MalformedPatternException {
+ log.debug("Adding -name selector for: {}", name);
+ selector.getSelectors().add(new NameSelector(name));
+ }
+
+ @Option(name="-iname")
+ private void addiNameFilter(final String name) throws MalformedPatternException {
+ log.debug("Adding -iname selector for: {}", name);
+ selector.getSelectors().add(new NameSelector(name, true));
+ }
+
+ @Option(name="-type")
+ private void addTypeFilter(final Type type) {
+ log.debug("Adding -type selector for: {}", type);
+ selector.getSelectors().add(new TypeSelector(type));
+ }
+
+ @Argument(required=true)
+ private String path;
+
+ public Object execute(final CommandContext context) throws Exception {
+ assert context != null;
+ IO io = context.getIo();
+
+ FileObject root = resolveFile(context, path);
+
+ ensureFileExists(root);
+
+ find(context, root, selector);
+
+ FileObjects.close(root);
+
+ return CommandAction.Result.SUCCESS;
+ }
+
+ private void find(final CommandContext context, final FileObject file, final FileSelector selector) throws FileSystemException {
+ assert context != null;
+ assert file != null;
+ assert selector != null;
+
+ FileObject[] files = file.findFiles(selector);
+
+ if (files != null && files.length != 0) {
+ for (FileObject child : files) {
+ display(context, child, file);
+ }
+ }
+ }
+
+ private void display(final CommandContext context, final FileObject file, final FileObject root) throws FileSystemException {
+ assert context != null;
+ assert file != null;
+
+ String path;
+ try {
+ path = new URI(this.path).resolve(root.getURL().toURI().relativize(file.getURL().toURI())).toString();
+ } catch (Exception e) {
+ path = file.getName().getPath();
+ }
+ IO io = context.getIo();
+ io.info(path);
+ }
+
+ //
+ // Type & TypeSelector
+ //
+
+ private enum Type
+ {
+ F, // normal file
+ D, // directory
+ }
+
+ private class TypeSelector
+ implements FileSelector
+ {
+ private final Type type;
+
+ public TypeSelector(final Type type) {
+ assert type != null;
+
+ this.type = type;
+
+ log.trace("Type: {}", type);
+ }
+
+ public boolean includeFile(final FileSelectInfo selection) throws Exception {
+ assert selection != null;
+
+ FileType ftype = selection.getFile().getType();
+
+ switch (type) {
+ case D:
+ return ftype == FileType.FOLDER;
+
+ case F:
+ return ftype == FileType.FILE;
+
+ // TODO: Handle FileType.FILE_OR_FOLDER
+
+ default:
+ return false;
+ }
+ }
+
+ public boolean traverseDescendents(final FileSelectInfo selection) throws Exception {
+ return true;
+ }
+ }
+
+ //
+ // NameSelector
+ //
+
+ private class NameSelector
+ implements FileSelector
+ {
+ private final Pattern pattern;
+
+ private final PatternMatcher matcher;
+
+ public NameSelector(final String name, final boolean ignoreCase) throws MalformedPatternException {
+ assert name != null;
+
+ PatternCompiler compiler = new GlobCompiler();
+ int options;
+ if (ignoreCase) {
+ options = GlobCompiler.CASE_INSENSITIVE_MASK;
+ }
+ else {
+ options = GlobCompiler.DEFAULT_MASK;
+ }
+ this.pattern = compiler.compile(name, options);
+ this.matcher = new Perl5Matcher();
+
+ log.trace("Pattern: {}", pattern.getPattern());
+ }
+
+ public NameSelector(final String name) throws MalformedPatternException {
+ this(name, false);
+ }
+
+ public boolean includeFile(final FileSelectInfo selection) throws Exception {
+ assert selection != null;
+ return matcher.matches(selection.getFile().getName().getBaseName(), pattern);
+ }
+
+ public boolean traverseDescendents(final FileSelectInfo selection) throws Exception {
+ return true;
+ }
+ }
+}
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