Package org.teiid.rhq.plugin.adapter.impl

Source Code of org.teiid.rhq.plugin.adapter.impl.PropertySimpleToSimpleValueAdapter

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* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.rhq.plugin.adapter.impl;

import java.io.Serializable;

import org.rhq.core.domain.configuration.PropertySimple;
import org.rhq.core.domain.configuration.definition.PropertyDefinitionSimple;
import org.teiid.rhq.plugin.adapter.api.AbstractPropertySimpleAdapter;
import org.teiid.rhq.plugin.adapter.api.PropertyAdapter;

import org.jboss.metatype.api.types.MetaType;
import org.jboss.metatype.api.types.SimpleMetaType;
import org.jboss.metatype.api.values.MetaValue;
import org.jboss.metatype.api.values.SimpleValue;
import org.jboss.metatype.api.values.SimpleValueSupport;

/**
* This class provides code that maps back and forth between a {@link PropertySimple} and a {@link SimpleValueSupport}.
*
*/
public class PropertySimpleToSimpleValueAdapter extends AbstractPropertySimpleAdapter implements PropertyAdapter<PropertySimple, PropertyDefinitionSimple>
{
    public void populatePropertyFromMetaValue(PropertySimple propSimple, MetaValue metaValue, PropertyDefinitionSimple propDefSimple)
    {
        Object value = (metaValue != null) ? ((SimpleValue)metaValue).getValue() : null;
        propSimple.setValue(value);
    }

    public MetaValue convertToMetaValue(PropertySimple propSimple, PropertyDefinitionSimple propDefSimple, MetaType metaType)
    {
        SimpleValue simpleValue = new SimpleValueSupport((SimpleMetaType)metaType, null);
        populateMetaValueFromProperty(propSimple, simpleValue, propDefSimple);
        return simpleValue;
    }

    protected void setInnerValue(String propSimpleValue, MetaValue metaValue, PropertyDefinitionSimple propDefSimple)
    {
        SimpleValueSupport simpleValueSupport = (SimpleValueSupport)metaValue;
        if (propSimpleValue == null)
        {
            // A null value is the easiest case - just set the SimpleMetaValue's inner value to null.
            simpleValueSupport.setValue(null);
            return;
        }
        // String value is non-null, so we can massage it into the proper type for the SimpleMetaValue's inner value.
        SimpleMetaType simpleMetaType = simpleValueSupport.getMetaType();
        Serializable innerValue;
        if (simpleMetaType.equals(SimpleMetaType.STRING) || simpleMetaType.equals(SimpleMetaType.NAMEDOBJECT))
            innerValue = propSimpleValue;
        else if (simpleMetaType.equals(SimpleMetaType.BOOLEAN) || simpleMetaType.equals(SimpleMetaType.BOOLEAN_PRIMITIVE))
            innerValue = Boolean.valueOf(propSimpleValue);
        else if (simpleMetaType.equals(SimpleMetaType.BYTE) || simpleMetaType.equals(SimpleMetaType.BYTE_PRIMITIVE))
            innerValue = Byte.valueOf(propSimpleValue);
        else if (simpleMetaType.equals(SimpleMetaType.CHARACTER) || simpleMetaType.equals(SimpleMetaType.CHARACTER_PRIMITIVE))
        {
            if (propSimpleValue.length() != 1)
                throw new IllegalStateException("String value '" + propSimpleValue + " cannot be converted to a character.");
            innerValue = propSimpleValue.charAt(0);
        }
        else if (simpleMetaType.equals(SimpleMetaType.DOUBLE) || simpleMetaType.equals(SimpleMetaType.DOUBLE_PRIMITIVE))
            innerValue = Double.valueOf(propSimpleValue);
        else if (simpleMetaType.equals(SimpleMetaType.FLOAT) || simpleMetaType.equals(SimpleMetaType.FLOAT_PRIMITIVE))
            innerValue = Float.valueOf(propSimpleValue);
        else if (simpleMetaType.equals(SimpleMetaType.INTEGER) || simpleMetaType.equals(SimpleMetaType.INTEGER_PRIMITIVE))
            innerValue = Integer.valueOf(propSimpleValue);
        else if (simpleMetaType.equals(SimpleMetaType.LONG) || simpleMetaType.equals(SimpleMetaType.LONG_PRIMITIVE))
            innerValue = Long.valueOf(propSimpleValue);
        else if (simpleMetaType.equals(SimpleMetaType.SHORT) || simpleMetaType.equals(SimpleMetaType.SHORT_PRIMITIVE))
            innerValue = Short.valueOf(propSimpleValue);
        else
            throw new IllegalStateException("Unsupported MetaType: " + simpleMetaType);
        simpleValueSupport.setValue(innerValue);
    }
}
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