AbstractNodeAdapter.java

/**
 * 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.brixcms.jcr;

import org.brixcms.jcr.wrapper.BrixNode;
import org.brixcms.web.reference.Reference;

/**
 * Base class for building node adapters. Adapters are objects that wrap the node and expose it as a business bean.
 *
 * @author igor.vaynberg
 */
public class AbstractNodeAdapter {
    private final BrixNode node;

    public AbstractNodeAdapter(BrixNode node) {
        if (node == null) {
            throw new IllegalArgumentException("Argument `node` cannot be null");
        }
        this.node = node;
    }

    protected BrixNode getNode() {
        return node;
    }

    protected String getProperty(String name, String defaultValue) {
        if (getNode().hasProperty(name)) {
            return getNode().getProperty(name).getString();
        } else {
            return defaultValue;
        }
    }

    protected Long getProperty(String name, Long defaultValue) {
        if (getNode().hasProperty(name)) {
            return getNode().getProperty(name).getLong();
        } else {
            return defaultValue;
        }
    }

    protected Integer getProperty(String name, Integer defaultValue) {
        Long val = getProperty(name, (Long) null);
        return (val == null) ? defaultValue : val.intValue();
    }

    protected BrixNode getProperty(String name, BrixNode defaultValue) {
        if (getNode().hasProperty(name)) {
            return (BrixNode) getNode().getProperty(name).getNode();
        } else {
            return defaultValue;
        }
    }

    protected Reference getProperty(String name, Reference defaultValue) {
        return Reference.load(getNode(), name);
    }

    protected void setProperty(String name, BrixNode value) {
        if (value == null) {
            if (getNode().hasProperty(name)) {
                getNode().getProperty(name).remove();
            }
        } else {
            getNode().setProperty(name, value);
        }
    }

    protected void setProperty(String name, String value) {
        if (value == null) {
            if (getNode().hasProperty(name)) {
                getNode().getProperty(name).remove();
            }
        } else {
            getNode().setProperty(name, value);
        }
    }

    protected void setProperty(String name, Long value) {
        if (value == null) {
            if (getNode().hasProperty(name)) {
                getNode().getProperty(name).remove();
            }
        } else {
            getNode().setProperty(name, value);
        }
    }

    protected void setProperty(String name, Integer value) {
        setProperty(name, (value == null) ? ((Long) null) : value.longValue());
    }

    protected void setProperty(String name, Reference value) {
        value.save(getNode(), name);
    }
}