/*license*\
XBN-Java: Copyright (C) 2014, Jeff Epstein (aliteralmind __DASH__ github __AT__ yahoo __DOT__ com)
This software is dual-licensed under the:
- Lesser General Public License (LGPL) version 3.0 or, at your option, any later version;
- Apache Software License (ASL) version 2.0.
Either license may be applied at your discretion. More information may be found at
- http://en.wikipedia.org/wiki/Multi-licensing.
The text of both licenses is available in the root directory of this project, under the names "LICENSE_lgpl-3.0.txt" and "LICENSE_asl-2.0.txt". The latest copies may be downloaded at:
- LGPL 3.0: https://www.gnu.org/licenses/lgpl-3.0.txt
- ASL 2.0: http://www.apache.org/licenses/LICENSE-2.0.txt
\*license*/
package com.github.xbn.io;
import java.io.Closeable;
import java.io.Flushable;
import java.io.PrintStream;
import java.io.IOException;
/**
<p>Immutable {@code TextAppender} for {@code Appendable}-s. See {@link com.github.xbn.io.TAAppendMutable TAAppendMutable}.</p>
* @since 0.1.0
* @author Copyright (C) 2014, Jeff Epstein ({@code aliteralmind __DASH__ github __AT__ yahoo __DOT__ com}), dual-licensed under the LGPL (version 3.0 or later) or the ASL (version 2.0). See source code for details. <a href="http://xbnjava.aliteralmind.com">{@code http://xbnjava.aliteralmind.com}</a>, <a href="https://github.com/aliteralmind/xbnjava">{@code https://github.com/aliteralmind/xbnjava}</a>
**/
public class TAAppendable<A extends Appendable> extends TextAppender {
private final Flushable flbl;
private final Closeable clbl;
public static final TAAppendable<PrintStream> CONSOLE = new TAAppendable<PrintStream>(System.out);
public static final TAAppendable<Appendable> SUPPRESS = new TAAppendable<Appendable>(IOUtil.APBL_SUPPRESS_ALL);
private final A apbl;
public TAAppendable(A to_appendTo) {
this(to_appendTo, "to_appendTo");
}
public TAAppendable(A to_appendTo, String apbl_name) {
if(to_appendTo == null) {
throw new NullPointerException(apbl_name);
}
apbl = to_appendTo;
//Avoids instanceof at every call to flush() and close()
flbl = (Flushable)((to_appendTo instanceof Flushable) ? to_appendTo
: IOUtil.FLUSHABLE_DO_NOTHING);
clbl = (Closeable)((to_appendTo instanceof Closeable) ? to_appendTo
: IOUtil.CLOSEABLE_DO_NOTHING);
}
public A getAppendable() {
return apbl;
}
public TAAppendable append(char chr) throws IOException {
getAppendable().append(chr);
flushRtx();
return this;
}
public TAAppendable append(CharSequence text) throws IOException {
getAppendable().append(text);
flushRtx();
return this;
}
public TAAppendable append(CharSequence text, int idx_start, int idx_endX) throws IOException {
try {
getAppendable().append(text, idx_start, idx_endX);
} catch(IndexOutOfBoundsException ibx) {
throw TextAppender.newIBXForCSSubstr(text, idx_start, idx_endX, ibx);
}
flushRtx();
return this;
}
public String toString() {
return getAppendable().toString();
}
/**
<p>Get a reference to <i>this</i> object</p>
* @return <i>{@code this}</i>
*/
public TAAppendable<A> getObjectCopy() {
return this;
}
@Override
public void flushRtx() {
try {
flbl.flush();
} catch(IOException iox) {
throw new RTIOException(iox);
}
}
@Override
public void closeRtx() {
flushRtx();
try {
clbl.close();
} catch(IOException iox) {
throw new RTIOException(iox);
}
}
}