--- /dev/null
+/*
+ * Copyright 2006 the original author or authors.
+ *
+ * Licensed 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.wamblee.mythtv;
+
+import java.io.File;
+import java.io.IOException;
+import java.text.SimpleDateFormat;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.wamblee.io.SimpleProcess;
+import org.wamblee.io.DirectoryMonitor.Listener;
+
+/**
+ * Link structure.
+ */
+public class LinkStructure implements Listener {
+
+ private static final Log LOG = LogFactory.getLog(LinkStructure.class);
+
+ private String _monitorDir;
+
+ private File _linkDir;
+
+ private RecordingDatabase _database;
+
+ private SimpleDateFormat _format;
+
+ private Map<File,Recording> _recordings;
+
+ public LinkStructure(String aMonitorDir, File aLinkDir,
+ RecordingDatabase aDatabase) {
+ _monitorDir = aMonitorDir + "/";
+ deleteDir(aLinkDir);
+ _linkDir = aLinkDir;
+ _database = aDatabase;
+ _format = new SimpleDateFormat("yyyy-MM-dd-HH:mm");
+ _recordings = new HashMap<File,Recording>();
+ }
+
+ private void deleteDir(File aFile) {
+ for (File file: aFile.listFiles()) {
+ if ( file.isDirectory()) {
+ deleteDir(file);
+ }
+ LOG.info("File deleted " + file + ": " + file.delete());
+ }
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.wamblee.io.DirectoryMonitor.Listener#fileChanged(java.io.File)
+ */
+ public void fileChanged(File aFile) {
+ LOG.debug("file changed " + aFile);
+
+ // Re-assess file type
+ Recording recording = _recordings.get(aFile);
+ LOG.debug("Recording changed " + recording);
+ recording.setFilesize(aFile.length());
+ _database.update(recording);
+ String dir = getDirectory(recording);
+ FileType type = getFileType(aFile);
+ String path = dir + "/" + getFilename(recording, type);
+
+ if (exists(dir + "/" + getFilename(recording, type))) {
+ // Nothing to do.
+ } else {
+ mkdir(dir);
+ for (FileType t : FileType.values()) {
+ rmlink(dir + "/" + getFilename(recording, t));
+ }
+ createSymLink(_monitorDir + aFile.getName(), dir + "/"
+ + getFilename(recording, type));
+ }
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.wamblee.io.DirectoryMonitor.Listener#fileCreated(java.io.File)
+ */
+ public void fileCreated(File aFile) {
+ LOG.debug("file created " + aFile);
+ Recording recording = _database.findRecording(aFile.getName());
+ _recordings.put(aFile, recording);
+ LOG.info("New recording detected " + aFile + " "
+ + recording);
+
+ recording.setFilesize(aFile.length());
+ _database.update(recording);
+ String dir = getDirectory(recording);
+ mkdir(dir);
+ createSymLink(_monitorDir + aFile.getName(), dir + "/"
+ + getFilename(recording, getFileType(aFile)));
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.wamblee.io.DirectoryMonitor.Listener#fileDeleted(java.io.File)
+ */
+ public void fileDeleted(File aFile) {
+ LOG.debug("file deleted " + aFile);
+ Recording recording = _recordings.get(aFile);
+ _recordings.remove(recording);
+ // mythtv will remove the recording from its database itself.
+ LOG.info("recording deleted " + recording);
+ String dir = getDirectory(recording);
+ for (FileType t: FileType.values()) {
+ rmlink(dir + "/" + getFilename(recording, t));
+ }
+ rmdir(dir);
+ }
+
+ private String getDirectory(Recording aRecording) {
+ return aRecording.getTitle().replaceAll("/", "-");
+ }
+
+ private FileType getFileType(File aFile) {
+ SimpleProcess process = new SimpleProcess(new File(_monitorDir), new String[] {
+ "file", aFile.getName() });
+ try {
+ process.run();
+ if (process.getStdout().contains("RIFF")) {
+ return FileType.AVI;
+ } else {
+ return FileType.MPG;
+ }
+ } catch (IOException e) {
+ LOG.error("Determining filetype for " + aFile + " failed", e);
+ return FileType.MPG;
+ }
+ }
+
+ private String getFilename(Recording aRecording, FileType aType) {
+ return (_format.format(aRecording.getProgstart()) + "-"
+ + aRecording.getSubtitle() + "-"
+ + aRecording.getChannel().getName() + "."
+ + aType.toString().toLowerCase()).replaceAll("/", "-");
+ }
+
+ private boolean exists(String aPath) {
+ LOG.debug("exists " + aPath);
+ return new File(_linkDir, aPath).exists();
+ }
+
+ private void rmlink(String aPath) {
+ LOG.debug("rmlink " + aPath);
+ File link = new File(_linkDir, aPath);
+ //if ( !link.exists()) {
+ // return;
+ // }
+ if (!link.delete()) {
+ LOG.warn("Delete failed: " + aPath);
+ } else {
+ LOG.info("Removed link " + link);
+ }
+ }
+
+ private void mkdir(String aDir) {
+ LOG.debug("mkdir " + aDir);
+ File dir = new File(_linkDir, aDir);
+ if ( dir.isDirectory()) {
+ return;
+ }
+ if (!dir.mkdirs()) {
+ LOG.warn("Could not create directory path: " + aDir);
+ } else {
+ LOG.info("Created directory " + dir);
+ }
+ }
+
+ private void rmdir(String aDir) {
+ LOG.debug("rmdir " + aDir);
+ File dir = new File(_linkDir, aDir);
+ if (!dir.delete()) {
+ LOG.warn("Directory not deleted (still recordings left): " + aDir);
+ } else {
+ LOG.info("Directory " + dir + " deleted.");
+ }
+ }
+
+ private void createSymLink(String aTarget, String aSource) {
+ try {
+ SimpleProcess process = new SimpleProcess(_linkDir, new String[] {
+ "ln", "-s", aTarget, aSource });
+ process.run();
+ LOG.info("Created symlink " + aSource + " -> " + aTarget);
+ } catch (IOException e) {
+ LOG.error(
+ "Could not create symlink: " + aTarget + " <- " + aSource,
+ e);
+ }
+ }
+}
git://wamblee.org / utils / blobdiff