/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * licenses this file to you 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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.apereo.portal.portlet.delegation.jsp;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;

/**
 * Parameter tag, uses the {@link ParameterizableTag} as a parent to add parameters
 *
 */
public class ParamTag extends TagSupport {
    private static final long serialVersionUID = 1L;

    private String name;
    private String value;

    /**
     * Processes the <CODE>param</CODE> tag.
     *
     * @return <CODE>SKIP_BODY</CODE>
     */
    @Override
    public int doStartTag() throws JspException {
        final ParameterizableTag parameterizableTag =
                (ParameterizableTag) findAncestorWithClass(this, ParameterizableTag.class);

        if (parameterizableTag == null) {
            throw new JspException(
                    "the 'param' Tag must have a parent tag that implements ParameterizableTag");
        }

        if (this.name != null) {
            parameterizableTag.addParameter(this.name, this.value);
        }

        return SKIP_BODY;
    }

    /**
     * Returns the name.
     *
     * @return String
     */
    public String getName() {
        return name;
    }

    /**
     * Returns the value.
     *
     * @return String
     */
    public String getValue() {
        return value;
    }

    /**
     * Sets the name.
     *
     * @param name The name to set
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * Sets the value.
     *
     * @param value The value to set
     */
    public void setValue(String value) {
        this.value = value;
    }
}