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/*
* ====================================================================
* Project: openMDX/Core, http://www.openmdx.org/
* Description: DefaultConverter
* 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.
*
* ------------------
*
* Copyright 2006 Envoi Solutions LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openmdx.base.json.stream;
/**
* Default converter that tries to convert value to appropriate primitive (if fails, returns original string)
*
* @author Dejan Bosanac
*/
public class DefaultConverter implements TypeConverter {
/* Were there a constants class, this key would live there. */
private static final String ENFORCE_32BIT_INTEGER_KEY = "jettison.mapped.typeconverter.enforce_32bit_integer";
public static final boolean ENFORCE_32BIT_INTEGER = Boolean.getBoolean( ENFORCE_32BIT_INTEGER_KEY );
private boolean enforce32BitInt = ENFORCE_32BIT_INTEGER;
public void setEnforce32BitInt(boolean enforce32BitInt) {
this.enforce32BitInt = enforce32BitInt;
}
public Object convertToJSONPrimitive(String text) {
if(text == null) return text;
Object primitive = null;
// Attempt to convert to Integer
try {
primitive = enforce32BitInt ? (Number)Integer.valueOf(text) : (Number)Long.valueOf(text);
} catch (Exception e) {/**/}
// Attempt to convert to double
if (primitive == null) {
try {
Double v = Double.valueOf(text);
if( !v.isInfinite() && !v.isNaN() ) {
primitive = v;
}
else {
primitive = text;
}
} catch (Exception e) {/**/}
}
// Attempt to convert to boolean
if (primitive == null) {
if(text.trim().equalsIgnoreCase("true") || text.trim().equalsIgnoreCase("false")) {
primitive = Boolean.valueOf(text);
}
}
if (primitive == null || !primitive.toString().equals(text)) {
// Default String
primitive = text;
}
return primitive;
}
}
