org.openmdx.base.query.spi.EmbeddedFlags Maven / Gradle / Ivy
/*
* ====================================================================
* Project: openMDX, http://www.openmdx.org/
* Description: Embedded Flags
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2013-2017, 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.base.query.spi;
import java.util.EnumSet;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.w3c.cci2.RegularExpressionFlag;
public class EmbeddedFlags {
private EmbeddedFlags(){
super();
}
private final static EmbeddedFlags INSTANCE = new EmbeddedFlags();
/**
* Group
* - Prefix & Embedded Flags
*
- Embedded Flags
*
- Value
*
*/
private final Pattern EMBEDDED_FLAGS = Pattern.compile("^(\\(\\?([A-Za-z]+))\\)(.*)$");
public static EmbeddedFlags getInstance(){
return INSTANCE;
}
public FlagsAndValue parse(
String valueWithEmbeddedFlags
){
final Matcher matcher = EMBEDDED_FLAGS.matcher(valueWithEmbeddedFlags);
final EnumSet
flagSet;
final String value;
if(matcher.matches()) {
flagSet = RegularExpressionFlag.toFlagSet(matcher.group(2));
value = matcher.group(3);
} else {
flagSet = EnumSet.noneOf(RegularExpressionFlag.class);
value = valueWithEmbeddedFlags;
}
return new FlagsAndValue(){
@Override
public String getValue() {
return value;
}
/* (non-Javadoc)
* @see org.openmdx.application.dataprovider.spi.EmbeddedFlags.FlagsAndValue#getFlagSet()
*/
@Override
public EnumSet getFlagSet() {
return flagSet;
}
};
}
public String embedFlags(EnumSet flagSet, String value){
if(flagSet.isEmpty()){
return value;
} else {
StringBuilder amendable = new StringBuilder(value);
for(RegularExpressionFlag flag : flagSet) {
flag.apply(amendable);
}
return amendable.toString();
}
}
public interface FlagsAndValue {
EnumSet getFlagSet();
String getValue();
}
}