jdk/src/share/classes/com/sun/java/util/jar/pack/PropMap.java
changeset 2 90ce3da70b43
child 5506 202f599c92aa
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/com/sun/java/util/jar/pack/PropMap.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,239 @@
+/*
+ * Copyright 2003 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package com.sun.java.util.jar.pack;
+
+import java.util.*;
+import java.util.jar.*;
+import java.util.jar.Pack200;
+import java.util.zip.*;
+import java.io.*;
+import java.beans.PropertyChangeListener;
+import java.beans.PropertyChangeEvent;
+/**
+ * Control block for publishing Pack200 options to the other classes.
+ */
+class PropMap extends TreeMap {
+    ArrayList _listeners = new ArrayList(1);
+
+    void addListener(PropertyChangeListener listener) {
+        _listeners.add(listener);
+    }
+
+    void removeListener(PropertyChangeListener listener) {
+        _listeners.remove(listener);
+    }
+
+    void addListeners(ArrayList listeners) {
+        _listeners.addAll(listeners);
+    }
+
+    void removeListeners(ArrayList listeners) {
+        _listeners.removeAll(listeners);
+    }
+
+    // Override:
+    public Object put(Object key, Object value) {
+        Object oldValue = super.put(key, value);
+        if (value != oldValue && _listeners.size() > 0) {
+            // Post the property change event.
+            PropertyChangeEvent event =
+                new PropertyChangeEvent(this, (String) key,
+                                        oldValue, value);
+            for (Iterator i = _listeners.iterator(); i.hasNext(); ) {
+                PropertyChangeListener listener =
+                    (PropertyChangeListener) i.next();
+                listener.propertyChange(event);
+            }
+        }
+        return oldValue;
+    }
+
+    // All this other stuff is private to the current package.
+    // Outide clients of Pack200 do not need to use it; they can
+    // get by with generic SortedMap functionality.
+    private static Map defaultProps;
+    static {
+        Properties props = new Properties();
+
+        // Allow implementation selected via -Dpack.disable.native=true
+        props.put(Utils.DEBUG_DISABLE_NATIVE,
+                  String.valueOf(Boolean.getBoolean(Utils.DEBUG_DISABLE_NATIVE)));
+
+        // Set the DEBUG_VERBOSE from system
+        props.put(Utils.DEBUG_VERBOSE,
+                  String.valueOf(Integer.getInteger(Utils.DEBUG_VERBOSE,0)));
+
+        // Set the PACK_TIMEZONE_NO_UTC
+        props.put(Utils.PACK_DEFAULT_TIMEZONE,
+                  String.valueOf(Boolean.getBoolean(Utils.PACK_DEFAULT_TIMEZONE)));
+
+        // Limit segment size to less than a megabyte.
+        props.put(Pack200.Packer.SEGMENT_LIMIT, ""+(1*1000*1000));
+
+        // Preserve file ordering by default.
+        props.put(Pack200.Packer.KEEP_FILE_ORDER, Pack200.Packer.TRUE);
+
+        // Preserve all modification times by default.
+        props.put(Pack200.Packer.MODIFICATION_TIME, Pack200.Packer.KEEP);
+
+        // Preserve deflation hints by default.
+        props.put(Pack200.Packer.DEFLATE_HINT, Pack200.Packer.KEEP);
+
+        // Pass through files with unrecognized attributes by default.
+        props.put(Pack200.Packer.UNKNOWN_ATTRIBUTE, Pack200.Packer.PASS);
+
+        // Default effort is 5, midway between 1 and 9.
+        props.put(Pack200.Packer.EFFORT, "5");
+
+        // Define certain attribute layouts by default.
+        // Do this after the previous props are put in place,
+        // to allow override if necessary.
+        try {
+            String propFile = "intrinsic.properties";
+            InputStream propStr = PackerImpl.class.getResourceAsStream(propFile);
+            props.load(new BufferedInputStream(propStr));
+            propStr.close();
+            for (Iterator i = props.entrySet().iterator(); i.hasNext(); ) {
+                Map.Entry e = (Map.Entry) i.next();
+                String key = (String) e.getKey();
+                String val = (String) e.getValue();
+                if (key.startsWith("attribute.")) {
+                    e.setValue(Attribute.normalizeLayoutString(val));
+                }
+            }
+        } catch (IOException ee) {
+            throw new RuntimeException(ee);
+        }
+
+        defaultProps = (new HashMap(props));  // shrink to fit
+    }
+
+    PropMap() {
+        putAll(defaultProps);
+    }
+
+    // Return a view of this map which includes only properties
+    // that begin with the given prefix.  This is easy because
+    // the map is sorted, and has a subMap accessor.
+    SortedMap prefixMap(String prefix) {
+        int len = prefix.length();
+        if (len == 0)
+            return this;
+        char nextch = (char)(prefix.charAt(len-1) + 1);
+        String limit = prefix.substring(0, len-1)+nextch;
+        //System.out.println(prefix+" => "+subMap(prefix, limit));
+        return subMap(prefix, limit);
+    }
+
+    String getProperty(String s) {
+        return (String) get(s);
+    }
+    String getProperty(String s, String defaultVal) {
+        String val = getProperty(s);
+        if (val == null)
+            return defaultVal;
+        return val;
+    }
+    String setProperty(String s, String val) {
+        return (String) put(s, val);
+    }
+
+    // Get sequence of props for "prefix", and "prefix.*".
+    List getProperties(String prefix) {
+        Collection values = prefixMap(prefix).values();
+        ArrayList res = new ArrayList(values.size());
+        res.addAll(values);
+        while (res.remove(null));
+        return res;
+    }
+
+    private boolean toBoolean(String val) {
+        return Boolean.valueOf(val).booleanValue();
+    }
+    boolean getBoolean(String s) {
+        return toBoolean(getProperty(s));
+    }
+    boolean setBoolean(String s, boolean val) {
+        return toBoolean(setProperty(s, String.valueOf(val)));
+    }
+
+    int toInteger(String val) {
+        if (val == null)  return 0;
+        if (Pack200.Packer.TRUE.equals(val))   return 1;
+        if (Pack200.Packer.FALSE.equals(val))  return 0;
+        return Integer.parseInt(val);
+    }
+    int getInteger(String s) {
+        return toInteger(getProperty(s));
+    }
+    int setInteger(String s, int val) {
+        return toInteger(setProperty(s, String.valueOf(val)));
+    }
+
+    long toLong(String val) {
+        try {
+            return val == null ? 0 : Long.parseLong(val);
+        } catch (java.lang.NumberFormatException nfe) {
+            throw new IllegalArgumentException("Invalid value");
+        }
+    }
+    long getLong(String s) {
+        return toLong(getProperty(s));
+    }
+    long setLong(String s, long val) {
+        return toLong(setProperty(s, String.valueOf(val)));
+    }
+
+    int getTime(String s) {
+        String sval = getProperty(s, "0");
+        if (Utils.NOW.equals(sval)) {
+            return (int)((System.currentTimeMillis()+500)/1000);
+        }
+        long lval = toLong(sval);
+        final long recentSecondCount = 1000000000;
+
+        if (lval < recentSecondCount*10 && !"0".equals(sval))
+            Utils.log.warning("Supplied modtime appears to be seconds rather than milliseconds: "+sval);
+
+        return (int)((lval+500)/1000);
+    }
+
+    void list(PrintStream out) {
+        PrintWriter outw = new PrintWriter(out);
+        list(outw);
+        outw.flush();
+    }
+    void list(PrintWriter out) {
+        out.println("#"+Utils.PACK_ZIP_ARCHIVE_MARKER_COMMENT+"[");
+        Set defaults = defaultProps.entrySet();
+        for (Iterator i = entrySet().iterator(); i.hasNext(); ) {
+            Map.Entry e = (Map.Entry) i.next();
+            if (defaults.contains(e))  continue;
+            out.println("  " + e.getKey() + " = " + e.getValue());
+        }
+        out.println("#]");
+    }
+}