unico 2003/10/23 01:52:50
Added:
src/blocks/repository/java/org/apache/cocoon/components/source/impl
MultiSourceValidity.java
Removed:
src/blocks/scratchpad/java/org/apache/cocoon/components/source/impl
MultiSourceValidity.java
Log:
move this along with TraversableGenerator.
Now there is no compilation dependency on scratchpad anymore
Revision Changes Path
1.1
cocoon-2.1/src/blocks/repository/java/org/apache/cocoon/components/source/impl/MultiSourceValidity.java
Index: MultiSourceValidity.java
===================================================================
/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
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 end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "Apache Cocoon" and "Apache Software Foundation" must not be
used to endorse or promote products derived from this software without
prior written permission. For written permission, please contact
[EMAIL PROTECTED]
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``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 THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, 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.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation and was originally created by
Stefano Mazzocchi <[EMAIL PROTECTED]>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.cocoon.components.source.impl;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.excalibur.source.Source;
import org.apache.excalibur.source.SourceResolver;
import org.apache.excalibur.source.SourceValidity;
/**
* An aggregated validity for multiple sources.
*
* @author <a href="http://www.apache.org/~sylvain";>Sylvain Wallez</a>
* @version CVS $Id: MultiSourceValidity.java,v 1.1 2003/10/23 08:52:50 unico
Exp $
*/
public class MultiSourceValidity implements SourceValidity{
private long expiry;
private long delay;
private List data = new ArrayList();
private boolean isClosed = false;
/** SourceResolver. Transient in order not to be serialized */
private transient SourceResolver resolver;
public MultiSourceValidity(SourceResolver resolver, long delay) {
this.resolver = resolver;
this.expiry = System.currentTimeMillis() + delay;
this.delay = delay;
}
public void addSource(Source src) {
if (this.data != null) {
SourceValidity validity = src.getValidity();
if (validity == null) {
// one of the sources has no validity : this object will
always be invalid
this.data = null;
} else {
// Add the validity and URI to the list
this.data.add(validity);
this.data.add(src.getURI());
}
}
}
public void close() {
this.isClosed = true;
this.resolver = null;
}
public int isValid() {
if (System.currentTimeMillis() <= expiry) {
return 1;
}
expiry = System.currentTimeMillis() + delay;
if (data == null || !isClosed) {
return -1;
} else {
return computeStatus(null);
}
}
public int isValid(SourceValidity newValidity) {
if (data == null || !isClosed) {
return -1;
}
if (newValidity instanceof MultiSourceValidity) {
return computeStatus(((MultiSourceValidity)newValidity).resolver);
} else {
// Don't know
return -1;
}
}
private int computeStatus(SourceResolver resolver) {
for (int i = 0; i < data.size(); i+=2) {
SourceValidity validity = (SourceValidity)data.get(i);
switch(validity.isValid()) {
case -1:
// invalid : stop examining
return -1;
case 1:
// valid : just continue to next source
break;
case 0:
// don't know : check with the new source
if (resolver == null) {
// we have no resolver : definitely don't know (need
to have one)
return 0;
}
try {
Source newSrc =
resolver.resolveURI((String)data.get(i+1));
int value = validity.isValid(newSrc.getValidity());
resolver.release(newSrc);
if (value != 1) {
return -1;
}
} catch(IOException ioe) {
return -1;
}
}
}
// All items checked successfully
return 1;
}
}
