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/**
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided
* that the following conditions are met:
*
* 1. Redistributions of source code must retain copyright
* statements and notices. Redistributions must also contain a
* copy of this document.
*
* 2. Redistributions in binary form must reproduce the
* above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. The name "Exolab" must not be used to endorse or promote
* products derived from this Software without prior written
* permission of Intalio, Inc. For written permission,
* please contact [email protected].
*
* 4. Products derived from this Software may not be called "Exolab"
* nor may "Exolab" appear in their names without prior written
* permission of Intalio, Inc. Exolab is a registered
* trademark of Intalio, Inc.
*
* 5. Due credit should be given to the Exolab Project
* (http://www.codehaus.org/).
*
* THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Copyright 1999 (C) Intalio, Inc. All Rights Reserved.
*
* $Id$
*/
package org.codehaus.modello.plugin.java.javasource;
/*
* Copyright (c) 2004, Codehaus.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import java.io.Writer;
/**
* The writer used by the modello classes
* @author Keith Visco
* @version $Revision$ $Date$
**/
public class JSourceWriter extends Writer {
/**
* The default character to use for indentation
**/
public static final char DEFAULT_CHAR = ' ';
/**
* The default indentation size
**/
public static final short DEFAULT_SIZE = 4;
/**
* The line separator to use for the writeln methods
**/
private String lineSeparator = System.getProperty("line.separator");
/**
* Flag for indicating whether we need to add
* the whitespace to beginning of next write
* call
**/
private boolean addIndentation = true;
/**
* A flag indicating whether this JSourceWriter should perform
* autoflush at the end of a new line
**/
private boolean autoflush = false;
/**
* The tab (indentation) size
**/
private short tabSize = DEFAULT_SIZE;
/**
* The tab representation
**/
private char[] tab;
/**
* The character to use for indentation
**/
private char tabChar = DEFAULT_CHAR;
/**
* The current tab level
**/
private short tabLevel = 0;
/**
* The writer to send all output to
**/
private Writer out = null;
/**
* Creates a new JSourceWriter
* @param out the Writer to write the actual output to
**/
public JSourceWriter(Writer out) {
this(out, DEFAULT_SIZE, DEFAULT_CHAR, false);
} // -- JSourceWriter
/**
* Creates a new JSourceWriter
* @param out the Writer to write the actual output to
* @param autoflush a boolean indicating whether or not to
* perform automatic flush at the end of a line
**/
public JSourceWriter(Writer out, boolean autoflush) {
this(out, DEFAULT_SIZE, DEFAULT_CHAR, autoflush);
} // -- JSourceWriter
/**
* Creates a new JSourceWriter
* @param out the Writer to write the actual output to
* @param tabSize the size of each indentation
* @param autoflush a boolean indicating whether or not to
* perform automatic flush at the end of a line
**/
public JSourceWriter(Writer out, short tabSize, boolean autoflush) {
this(out, tabSize, DEFAULT_CHAR, autoflush);
} // -- JSourceWriter
/**
* Creates a new JSourceWriter
* @param out the Writer to write the actual output to
* @param tabSize the size of each indentation
* @param tabChar the character to use for indentation
* @param autoflush a boolean indicating whether or not to
* perform automatic flush at the end of a line
**/
public JSourceWriter(Writer out, short tabSize, char tabChar, boolean autoflush) {
this.out = out;
this.autoflush = autoflush;
this.tabChar = tabChar;
this.tabSize = tabSize;
createTab();
} // -- JSourceWriter
/**
* Returns the line separator being used by this JSourceWriter
* @return the line separator being used by this JSourceWriter
**/
public String getLineSeparator() {
return lineSeparator;
} // -- getLineSeparator
/**
* Increases the indentation level by 1
**/
public void indent() {
++tabLevel;
} // -- increaseIndent
/**
* Checks to see if the cursor is positioned on a new line
* @return true if the cursor is at the start of a new line, otherwise false
**/
public boolean isNewline() {
// -- if we need to add indentation, we are on a new line
return addIndentation;
} // -- isNewline
/**
* Sets the line separator to use at the end of each line
* @param lineSeparator the String to use as a line
* separator.
*
* Typically a line separator will be one of the following:
*
* "\r\n" for MS Windows
* "\n" for UNIX
* "\r" for Macintosh
**/
public void setLineSeparator(String lineSeparator) {
this.lineSeparator = lineSeparator;
} // -- setLineSeparator
/**
* Decreases the indentation level by 1
**/
public void unindent() {
if (tabLevel > 0) --tabLevel;
} // -- decreaseIndent
// ----------------------------/
// - Additional write methods -/
// ----------------------------/
public void write(float f) {
write(String.valueOf(f));
} // -- write(float)
public void write(long l) {
write(String.valueOf(l));
} // -- write(long)
public void write(double d) {
write(String.valueOf(d));
} // -- write(double)
public void write(Object obj) {
write(obj.toString());
} // -- write(Object)
public void write(boolean b) {
write(String.valueOf(b));
} // -- write(boolean)
// - writeln() methods
public void writeln() {
synchronized (lock) {
linefeed();
addIndentation = true;
}
} // -- writeln
public void writeln(float f) {
synchronized (lock) {
ensureIndent();
try {
out.write(String.valueOf(f));
} catch (java.io.IOException ioe) {
}
;
linefeed();
addIndentation = true;
}
} // -- writeln(float)
public void writeln(long l) {
synchronized (lock) {
ensureIndent();
try {
out.write(String.valueOf(l));
} catch (java.io.IOException ioe) {
}
;
linefeed();
addIndentation = true;
}
} // -- writeln(long)
public void writeln(int i) {
synchronized (lock) {
ensureIndent();
try {
out.write(String.valueOf(i));
} catch (java.io.IOException ioe) {
}
;
linefeed();
addIndentation = true;
}
} // -- writeln(int)
public void writeln(double d) {
synchronized (lock) {
ensureIndent();
try {
out.write(String.valueOf(d));
} catch (java.io.IOException ioe) {
}
;
linefeed();
addIndentation = true;
}
} // -- writeln(double)
public void writeln(Object obj) {
synchronized (lock) {
ensureIndent();
try {
out.write(obj.toString());
} catch (java.io.IOException ioe) {
}
;
linefeed();
addIndentation = true;
}
} // -- writeln(Object)
public void writeln(String string) {
synchronized (lock) {
if (string.length() > 0) {
ensureIndent();
try {
out.write(string);
} catch (java.io.IOException ioe) {
}
}
linefeed();
addIndentation = true;
}
} // -- writeln(String)
public void writeln(char[] chars) {
synchronized (lock) {
ensureIndent();
try {
out.write(chars);
} catch (java.io.IOException ioe) {
}
;
linefeed();
addIndentation = true;
}
} // -- writeln(char[])
public void writeln(boolean b) {
synchronized (lock) {
ensureIndent();
try {
out.write(String.valueOf(b));
} catch (java.io.IOException ioe) {
}
;
linefeed();
addIndentation = true;
}
} // -- writeln(boolean)
public void writeln(char c) {
synchronized (lock) {
ensureIndent();
try {
out.write(c);
} catch (java.io.IOException ioe) {
}
;
linefeed();
addIndentation = true;
}
} // -- writeln(char)
// -----------------------/
// - Methods from Writer -/
// -----------------------/
public void close() {
try {
out.close();
} catch (java.io.IOException ioe) {
}
;
} // -- close
public void flush() {
try {
out.flush();
} catch (java.io.IOException ioe) {
}
;
} // -- flush
public void write(String s, int off, int len) {
synchronized (lock) {
ensureIndent();
try {
out.write(s, off, len);
} catch (java.io.IOException ioe) {
}
;
if (autoflush) flush();
}
} // -- write
public void write(String s) {
synchronized (lock) {
ensureIndent();
try {
out.write(s);
} catch (java.io.IOException ioe) {
}
;
if (autoflush) flush();
}
} // -- write
public void write(char[] buf) {
synchronized (lock) {
ensureIndent();
try {
out.write(buf);
} catch (java.io.IOException ioe) {
}
;
if (autoflush) flush();
}
} // -- write
public void write(int c) {
synchronized (lock) {
ensureIndent();
try {
out.write(c);
} catch (java.io.IOException ioe) {
}
;
if (autoflush) flush();
}
} // -- write
public void write(char[] buf, int off, int len) {
synchronized (lock) {
ensureIndent();
try {
out.write(buf, off, len);
} catch (java.io.IOException ioe) {
}
;
if (autoflush) flush();
}
} // -- write
// ---------------------/
// - Protected Methods -/
// ---------------------/
protected short getIndentLevel() {
return tabLevel;
}
/**
* Returns the current indent size (getIndentLevel()*tabSize);
* @return the current indent size
**/
protected short getIndentSize() {
return (short) (tabLevel * tabSize);
} // -- getIndentSize
protected char getIndentChar() {
return tabChar;
}
protected void writeIndent() {
try {
for (int i = 0; i < tabLevel; i++) out.write(tab);
} catch (java.io.IOException ioe) {
}
;
} // -- writeIndent
// -------------------/
// - Private Methods -/
// -------------------/
private void ensureIndent() {
if (addIndentation) {
writeIndent();
addIndentation = false;
}
} // -- ensureIndent
/**
* writes the line separator character to the writer
**/
private void linefeed() {
try {
out.write(lineSeparator);
} catch (java.io.IOException ioe) {
}
;
} // -- linefeed
/**
* Creates the tab from the tabSize and the tabChar
**/
private void createTab() {
tab = new char[tabSize];
for (int i = 0; i < tabSize; i++) {
tab[i] = tabChar;
}
} // -- createTab
} // -- JSourceWriter
