82 // javadoc.
83 private void configure() {
84 LogManager manager = LogManager.getLogManager();
85 String cname = getClass().getName();
86
87 setLevel(manager.getLevelProperty(cname +".level", Level.INFO));
88 setFilter(manager.getFilterProperty(cname +".filter", null));
89 setFormatter(manager.getFormatterProperty(cname +".formatter", new SimpleFormatter()));
90 try {
91 setEncoding(manager.getStringProperty(cname +".encoding", null));
92 } catch (Exception ex) {
93 try {
94 setEncoding(null);
95 } catch (Exception ex2) {
96 // doing a setEncoding with null should always work.
97 // assert false;
98 }
99 }
100 }
101
102 /**
103 * Create a <tt>StreamHandler</tt>, with no current output stream.
104 */
105 public StreamHandler() {
106 sealed = false;
107 configure();
108 sealed = true;
109 }
110
111 /**
112 * Create a <tt>StreamHandler</tt> with a given <tt>Formatter</tt>
113 * and output stream.
114 * <p>
115 * @param out the target output stream
116 * @param formatter Formatter to be used to format output
117 */
118 public StreamHandler(OutputStream out, Formatter formatter) {
119 sealed = false;
120 configure();
121 setFormatter(formatter);
122 setOutputStream(out);
123 sealed = true;
124 }
125
126 /**
127 * Change the output stream.
128 * <P>
129 * If there is a current output stream then the <tt>Formatter</tt>'s
130 * tail string is written and the stream is flushed and closed.
131 * Then the output stream is replaced with the new output stream.
132 *
133 * @param out New output stream. May not be null.
134 * @exception SecurityException if a security manager exists and if
135 * the caller does not have <tt>LoggingPermission("control")</tt>.
136 */
137 protected synchronized void setOutputStream(OutputStream out) throws SecurityException {
138 if (out == null) {
139 throw new NullPointerException();
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82 // javadoc.
83 private void configure() {
84 LogManager manager = LogManager.getLogManager();
85 String cname = getClass().getName();
86
87 setLevel(manager.getLevelProperty(cname +".level", Level.INFO));
88 setFilter(manager.getFilterProperty(cname +".filter", null));
89 setFormatter(manager.getFormatterProperty(cname +".formatter", new SimpleFormatter()));
90 try {
91 setEncoding(manager.getStringProperty(cname +".encoding", null));
92 } catch (Exception ex) {
93 try {
94 setEncoding(null);
95 } catch (Exception ex2) {
96 // doing a setEncoding with null should always work.
97 // assert false;
98 }
99 }
100 }
101
102 // Package private support for security checking. When isSealed
103 // returns true, we access check updates to the class.
104 // Initially the value is false, but we set to true at end of
105 // each constructor...
106 private final boolean sealed;
107
108 @Override
109 boolean isSealed() {
110 return sealed;
111 }
112
113 /**
114 * Create a <tt>StreamHandler</tt>, with no current output stream.
115 */
116 public StreamHandler() {
117 configure();
118 sealed = true;
119 }
120
121 /**
122 * Create a <tt>StreamHandler</tt> with a given <tt>Formatter</tt>
123 * and output stream.
124 * <p>
125 * @param out the target output stream
126 * @param formatter Formatter to be used to format output
127 */
128 public StreamHandler(OutputStream out, Formatter formatter) {
129 configure();
130 setFormatter(formatter);
131 setOutputStream(out);
132 sealed = true;
133 }
134
135 /**
136 * Change the output stream.
137 * <P>
138 * If there is a current output stream then the <tt>Formatter</tt>'s
139 * tail string is written and the stream is flushed and closed.
140 * Then the output stream is replaced with the new output stream.
141 *
142 * @param out New output stream. May not be null.
143 * @exception SecurityException if a security manager exists and if
144 * the caller does not have <tt>LoggingPermission("control")</tt>.
145 */
146 protected synchronized void setOutputStream(OutputStream out) throws SecurityException {
147 if (out == null) {
148 throw new NullPointerException();
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