org.openmdx.kernel.configuration.CastAwareParser Maven / Gradle / Ivy
/*
* ====================================================================
* Project: openMDX/Core, http://www.openmdx.org/
* Description: Cast-Aware Parser
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2014, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of the openMDX team nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS 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 COPYRIGHT OWNER OR 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.
*
* ------------------
*
* This product includes software developed by other organizations as
* listed in the NOTICE file.
*/
package org.openmdx.kernel.configuration;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.openmdx.kernel.loading.Classes;
import org.openmdx.kernel.text.parsing.AbstractParser;
import org.openmdx.kernel.text.spi.Parser;
/**
* Cast-Aware Parser
*/
class CastAwareParser extends AbstractParser {
CastAwareParser(
Parser delegate
) {
this.delegate = delegate;
}
private final Parser delegate;
static final Pattern CASTED_VALUE_PATTERN = Pattern.compile(
"\\(([A-Za-z0-9_.]+)\\)(.*)"
);
@Override
public boolean handles(Class type) {
return type == null || delegate.handles(type);
}
/* (non-Javadoc)
* @see org.openmdx.kernel.text.parsing.AbstractParser#parseAs(java.lang.String, java.lang.Class)
*/
@Override
protected Object parseAs(
String externalRepresentation,
Class valueClass
) throws Exception {
final Matcher matcher = CASTED_VALUE_PATTERN.matcher(externalRepresentation);
if(matcher.matches()) {
final String typeName = matcher.group(1);
final String value = matcher.group(2);
final Class type;
if(valueClass == null || !typeName.equals(valueClass.getName())) {
type = Classes.getApplicationClass(typeName);
} else {
type = valueClass;
}
return delegate.parse(type, value);
} else if(valueClass == null) {
return externalRepresentation;
} else {
return delegate.parse(valueClass, externalRepresentation);
}
}
}