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Diffstat (limited to 'libjava/classpath/javax/activation/MailcapCommandMap.java')
| -rw-r--r-- | libjava/classpath/javax/activation/MailcapCommandMap.java | 803 |
1 files changed, 0 insertions, 803 deletions
diff --git a/libjava/classpath/javax/activation/MailcapCommandMap.java b/libjava/classpath/javax/activation/MailcapCommandMap.java deleted file mode 100644 index 48b1bbb..0000000 --- a/libjava/classpath/javax/activation/MailcapCommandMap.java +++ /dev/null @@ -1,803 +0,0 @@ -/* MailcapCommandMap.java -- Command map implementation using a mailcap file. - Copyright (C) 2004 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - -package javax.activation; - -import gnu.java.lang.CPStringBuilder; - -import java.io.BufferedReader; -import java.io.File; -import java.io.FileReader; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.io.IOException; -import java.io.Reader; -import java.io.StringReader; -import java.net.URL; -import java.util.ArrayList; -import java.util.Enumeration; -import java.util.LinkedHashMap; -import java.util.Iterator; -import java.util.List; -import java.util.Map; - -/** - * Implementation of a command map using a <code>mailcap</code> file (RFC - * 1524). Mailcap files are searched for in the following places: - * <ol> - * <li>Programmatically added entries to this interface</li> - * <li>the file <tt>.mailcap</tt> in the user's home directory</li> - * <li>the file <i><java.home></i><tt>/lib/mailcap</tt></li> - * <li>the resource <tt>META-INF/mailcap</tt></li> - * <li>the resource <tt>META-INF/mailcap.default</tt> in the JAF - * distribution</li> - * </ol> - * - * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> - * @version 1.1 - */ -public class MailcapCommandMap - extends CommandMap -{ - - private static final int PROG = 0; - private static final int HOME = 1; - private static final int SYS = 2; - private static final int JAR = 3; - private static final int DEF = 4; - private static boolean debug = false; - private static final int NORMAL = 0; - private static final int FALLBACK = 1; - - static - { - try - { - String d = System.getProperty("javax.activation.debug"); - debug = Boolean.valueOf(d).booleanValue(); - } - catch (SecurityException e) - { - } - } - - private Map<String,Map<String,List<String>>>[][] mailcaps; - - /** - * Default constructor. - */ - public MailcapCommandMap() - { - init(null); - } - - /** - * Constructor specifying a filename. - * @param fileName the name of the file to read mailcap entries from - */ - public MailcapCommandMap(String fileName) - throws IOException - { - Reader in = null; - try - { - in = new FileReader(fileName); - } - catch (IOException e) - { - } - init(in); - if (in != null) - { - try - { - in.close(); - } - catch (IOException e) - { - } - } - } - - /** - * Constructor specifying an input stream. - * @param is the input stream to read mailcap entries from - */ - public MailcapCommandMap(InputStream is) - { - init(new InputStreamReader(is)); - } - - private void init(Reader in) - { - mailcaps = new Map[5][2]; - for (int i = 0; i < 5; i++) - { - for (int j = 0; j < 2; j++) - { - mailcaps[i][j] = - new LinkedHashMap<String,Map<String,List<String>>>(); - } - } - if (in != null) - { - if (debug) - { - System.out.println("MailcapCommandMap: load PROG"); - } - try - { - parse(PROG, in); - } - catch (IOException e) - { - } - } - - if (debug) - { - System.out.println("MailcapCommandMap: load HOME"); - } - try - { - String home = System.getProperty("user.home"); - if (home != null) - { - parseFile(HOME, new CPStringBuilder(home) - .append(File.separatorChar) - .append(".mailcap") - .toString()); - } - } - catch (SecurityException e) - { - } - - if (debug) - { - System.out.println("MailcapCommandMap: load SYS"); - } - try - { - parseFile(SYS, - new CPStringBuilder(System.getProperty("java.home")) - .append(File.separatorChar) - .append("lib") - .append(File.separatorChar) - .append("mailcap") - .toString()); - } - catch (SecurityException e) - { - } - - if (debug) - { - System.out.println("MailcapCommandMap: load JAR"); - } - List<URL> systemResources = getSystemResources("META-INF/mailcap"); - int len = systemResources.size(); - if (len > 0) - { - for (int i = 0; i < len ; i++) - { - Reader urlIn = null; - URL url = systemResources.get(i); - try - { - if (debug) - { - System.out.println("\t" + url.toString()); - } - urlIn = new InputStreamReader(url.openStream()); - parse(JAR, urlIn); - } - catch (IOException e) - { - if (debug) - { - System.out.println(e.getClass().getName() + ": " + - e.getMessage()); - } - } - finally - { - if (urlIn != null) - { - try - { - urlIn.close(); - } - catch (IOException e) - { - } - } - } - } - } - else - { - parseResource(JAR, "/META-INF/mailcap"); - } - - if (debug) - { - System.out.println("MailcapCommandMap: load DEF"); - } - parseResource(DEF, "/META-INF/mailcap.default"); - } - - /** - * Returns the list of preferred commands for a given MIME type. - * @param mimeType the MIME type - */ - public synchronized CommandInfo[] getPreferredCommands(String mimeType) - { - List<CommandInfo> cmdList = new ArrayList<CommandInfo>(); - List<String> verbList = new ArrayList<String>(); - for (int i = 0; i < 2; i++) - { - for (int j = 0; j < 5; j++) - { - Map<String,List<String>> map = getCommands(mailcaps[j][i], mimeType); - if (map != null) - { - for (Map.Entry<String,List<String>> entry : map.entrySet()) - { - String verb = entry.getKey(); - if (!verbList.contains(verb)) - { - List<String> classNames = entry.getValue(); - String className = classNames.get(0); - CommandInfo cmd = new CommandInfo(verb, className); - cmdList.add(cmd); - verbList.add(verb); - } - } - } - } - } - CommandInfo[] cmds = new CommandInfo[cmdList.size()]; - cmdList.toArray(cmds); - return cmds; - } - - /** - * Returns all commands for the given MIME type. - * @param mimeType the MIME type - */ - public synchronized CommandInfo[] getAllCommands(String mimeType) - { - List<CommandInfo> cmdList = new ArrayList<CommandInfo>(); - for (int i = 0; i < 2; i++) - { - for (int j = 0; j < 5; j++) - { - Map<String,List<String>> map = getCommands(mailcaps[j][i], mimeType); - if (map != null) - { - for (Map.Entry<String,List<String>> entry : map.entrySet()) - { - String verb = entry.getKey(); - List<String> classNames = entry.getValue(); - int len = classNames.size(); - for (int l = 0; l < len; l++) - { - String className = classNames.get(l); - CommandInfo cmd = new CommandInfo(verb, className); - cmdList.add(cmd); - } - } - } - } - } - CommandInfo[] cmds = new CommandInfo[cmdList.size()]; - cmdList.toArray(cmds); - return cmds; - } - - /** - * Returns the command with the specified name for the given MIME type. - * @param mimeType the MIME type - * @param cmdName the command verb - */ - public synchronized CommandInfo getCommand(String mimeType, - String cmdName) - { - for (int i = 0; i < 2; i++) - { - for (int j = 0; j < 5; j++) - { - Map<String,List<String>> map = - getCommands(mailcaps[j][i], mimeType); - if (map != null) - { - List<String> classNames = map.get(cmdName); - if (classNames == null) - { - classNames = map.get("x-java-" + cmdName); - } - if (classNames != null) - { - String className = classNames.get(0); - return new CommandInfo(cmdName, className); - } - } - } - } - return null; - } - - /** - * Adds entries programmatically to the registry. - * @param mailcap a mailcap string - */ - public synchronized void addMailcap(String mailcap) - { - if (debug) - { - System.out.println("MailcapCommandMap: add to PROG"); - } - try - { - parse(PROG, new StringReader(mailcap)); - } - catch (IOException e) - { - } - } - - /** - * Returns the DCH for the specified MIME type. - * @param mimeType the MIME type - */ - public synchronized DataContentHandler - createDataContentHandler(String mimeType) - { - if (debug) - { - System.out.println("MailcapCommandMap: " + - "createDataContentHandler for " + mimeType); - } - for (int i = 0; i < 2; i++) - { - for (int j = 0; j < 5; j++) - { - if (debug) - { - System.out.println(" search DB #" + i); - } - Map<String,List<String>> map = getCommands(mailcaps[j][i], mimeType); - if (map != null) - { - List<String> classNames = map.get("content-handler"); - if (classNames == null) - { - classNames = map.get("x-java-content-handler"); - } - if (classNames != null) - { - String className = classNames.get(0); - if (debug) - { - System.out.println(" In " + nameOf(j) + - ", content-handler=" + className); - } - try - { - Class<?> clazz = Class.forName(className); - return (DataContentHandler)clazz.newInstance(); - } - catch (IllegalAccessException e) - { - if (debug) - { - e.printStackTrace(); - } - } - catch (ClassNotFoundException e) - { - if (debug) - { - e.printStackTrace(); - } - } - catch (InstantiationException e) - { - if (debug) - { - e.printStackTrace(); - } - } - } - } - } - } - return null; - } - - /** - * Get the native commands for the given MIME type. - * Returns an array of strings where each string is - * an entire mailcap file entry. The application - * will need to parse the entry to extract the actual - * command as well as any attributes it needs. See - * <a href="http://www.ietf.org/rfc/rfc1524.txt">RFC 1524</a> - * for details of the mailcap entry syntax. Only mailcap - * entries that specify a view command for the specified - * MIME type are returned. - * @return array of native command entries - * @since JAF 1.1 - */ - public String[] getNativeCommands(String mimeType) - { - List<String> acc = new ArrayList<String>(); - for (int i = 0; i < 2; i++) - { - for (int j = 0; j < 5; j++) - { - addNativeCommands(acc, mailcaps[j][i], mimeType); - } - } - String[] ret = new String[acc.size()]; - acc.toArray(ret); - return ret; - } - - private void addNativeCommands(List<String> acc, - Map<String,Map<String,List<String>>> mailcap, - String mimeType) - { - for (Map.Entry<String,Map<String,List<String>>> mEntry : mailcap.entrySet()) - { - String entryMimeType = mEntry.getKey(); - if (!entryMimeType.equals(mimeType)) - { - continue; - } - Map<String,List<String>> commands = mEntry.getValue(); - String viewCommand = commands.get("view-command").get(0); - if (viewCommand == null) - { - continue; - } - CPStringBuilder buf = new CPStringBuilder(); - buf.append(mimeType); - buf.append(';'); - buf.append(' '); - buf.append(viewCommand); - for (Map.Entry<String,List<String>> cEntry : commands.entrySet()) - { - String verb = cEntry.getKey(); - List<String> classNames = cEntry.getValue(); - if (!"view-command".equals(verb)) - { - for (String command : classNames) - { - buf.append(';'); - buf.append(' '); - buf.append(verb); - buf.append('='); - buf.append(command); - } - } - } - if (buf.length() > 0) - { - acc.add(buf.toString()); - } - } - } - - private static String nameOf(int mailcap) - { - switch (mailcap) - { - case PROG: - return "PROG"; - case HOME: - return "HOME"; - case SYS: - return "SYS"; - case JAR: - return "JAR"; - case DEF: - return "DEF"; - default: - return "ERR"; - } - } - - private void parseFile(int index, String filename) - { - Reader in = null; - try - { - if (debug) - { - System.out.println("\t" + filename); - } - in = new FileReader(filename); - parse(index, in); - } - catch (IOException e) - { - if (debug) - { - System.out.println(e.getClass().getName() + ": " + - e.getMessage()); - } - } - finally - { - if (in != null) - { - try - { - in.close(); - } - catch (IOException e) - { - } - } - } - } - - private void parseResource(int index, String name) - { - Reader in = null; - try - { - InputStream is = getClass().getResourceAsStream(name); - if (is != null) - { - if (debug) - { - System.out.println("\t" + name); - } - in = new InputStreamReader(is); - parse(index, in); - } - } - catch (IOException e) - { - if (debug) - { - System.out.println(e.getClass().getName() + ": " + - e.getMessage()); - } - } - finally - { - if (in != null) - { - try - { - in.close(); - } - catch (IOException e) - { - } - } - } - } - - private void parse(int index, Reader in) - throws IOException - { - BufferedReader br = new BufferedReader(in); - CPStringBuilder buf = null; - for (String line = br.readLine(); line != null; line = br.readLine()) - { - line = line.trim(); - int len = line.length(); - if (len == 0 || line.charAt(0) == '#') - { - continue; // Comment - } - if (line.charAt(len - 1) == '\\') - { - if (buf == null) - { - buf = new CPStringBuilder(); - } - buf.append(line.substring(0, len - 1)); - } - else if (buf != null) - { - buf.append(line); - parseEntry(index, buf.toString()); - buf = null; - } - else - { - parseEntry(index, line); - } - } - } - - private void parseEntry(int index, String line) - { - // Tokenize entry into fields - char[] chars = line.toCharArray(); - int len = chars.length; - boolean inQuotedString = false; - boolean fallback = false; - CPStringBuilder buffer = new CPStringBuilder(); - List<String> fields = new ArrayList<String>(); - for (int i = 0; i < len; i++) - { - char c = chars[i]; - if (c == '\\') - { - c = chars[++i]; // qchar - } - if (c == ';' && !inQuotedString) - { - String field = buffer.toString().trim(); - if ("x-java-fallback-entry".equals(field)) - { - fallback = true; - } - fields.add(field); - buffer.setLength(0); - } - else - { - if (c == '"') - { - inQuotedString = !inQuotedString; - } - buffer.append(c); - } - } - String field = buffer.toString().trim(); - if ("x-java-fallback-entry".equals(field)) - { - fallback = true; - } - fields.add(field); - - len = fields.size(); - if (len < 2) - { - if (debug) - { - System.err.println("Invalid mailcap entry: " + line); - } - return; - } - - Map<String,Map<String,List<String>>> mailcap = - fallback ? mailcaps[index][FALLBACK] : mailcaps[index][NORMAL]; - String mimeType = fields.get(0); - addField(mailcap, mimeType, "view-command", (String) fields.get(1)); - for (int i = 2; i < len; i++) - { - addField(mailcap, mimeType, null, (String) fields.get(i)); - } - } - - private void addField(Map<String,Map<String,List<String>>> mailcap, - String mimeType, String verb, String command) - { - if (verb == null) - { - int ei = command.indexOf('='); - if (ei != -1) - { - verb = command.substring(0, ei); - command = command.substring(ei + 1); - } - } - if (command.length() == 0 || verb == null || verb.length() == 0) - { - return; // Invalid field or flag - } - - Map<String,List<String>> commands = mailcap.get(mimeType); - if (commands == null) - { - commands = new LinkedHashMap<String,List<String>>(); - mailcap.put(mimeType, commands); - } - List<String> classNames = commands.get(verb); - if (classNames == null) - { - classNames = new ArrayList<String>(); - commands.put(verb, classNames); - } - classNames.add(command); - } - - private Map<String,List<String>> - getCommands(Map<String,Map<String,List<String>>> mailcap, - String mimeType) - { - int si = mimeType.indexOf('/'); - String genericMimeType = new CPStringBuilder(mimeType.substring(0, si)) - .append('/') - .append('*') - .toString(); - Map<String,List<String>> specific = mailcap.get(mimeType); - Map<String,List<String>> generic = mailcap.get(genericMimeType); - if (generic == null) - { - return specific; - } - if (specific == null) - { - return generic; - } - Map<String,List<String>> combined = new LinkedHashMap<String,List<String>>(); - combined.putAll(specific); - for (String verb : generic.keySet()) - { - List<String> genericClassNames = generic.get(verb); - List<String> classNames = combined.get(verb); - if (classNames == null) - { - combined.put(verb, genericClassNames); - } - else - { - classNames.addAll(genericClassNames); - } - } - return combined; - } - - // -- Utility methods -- - - private List<URL> getSystemResources(String name) - { - List<URL> acc = new ArrayList<URL>(); - try - { - for (Enumeration<URL> i = ClassLoader.getSystemResources(name); - i.hasMoreElements(); ) - { - acc.add(i.nextElement()); - } - } - catch (IOException e) - { - } - return acc; - } - -} |