com.liferay.taglib.ui.SearchContainerResultsTag.java Source code

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Here is the source code for com.liferay.taglib.ui.SearchContainerResultsTag.java

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/**
 * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
 *
 * 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.
 */

package com.liferay.taglib.ui;

import com.liferay.portal.kernel.dao.search.SearchContainer;
import com.liferay.portal.kernel.util.ServerDetector;

import java.util.ArrayList;
import java.util.List;

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

/**
 * @author Raymond Aug
 */
public class SearchContainerResultsTag<R> extends TagSupport {

    public static final String DEFAULT_RESULTS_VAR = "results";

    public static final String DEFAULT_TOTAL_VAR = "total";

    @Override
    public int doEndTag() throws JspException {
        try {
            if (_results == null) {
                _results = (List<R>) pageContext.getAttribute(_resultsVar);
                _total = (Integer) pageContext.getAttribute(_totalVar);
            }

            if (_results != null) {
                if (_total < _results.size()) {
                    _total = _results.size();
                }
            }

            SearchContainerTag<R> searchContainerTag = (SearchContainerTag<R>) findAncestorWithClass(this,
                    SearchContainerTag.class);

            SearchContainer<R> searchContainer = searchContainerTag.getSearchContainer();

            searchContainer.setResults(_results);
            searchContainer.setTotal(_total);

            searchContainerTag.setHasResults(true);

            pageContext.setAttribute(_resultsVar, _results);
            pageContext.setAttribute(_totalVar, _total);

            return EVAL_PAGE;
        } catch (Exception e) {
            throw new JspException(e);
        } finally {
            if (!ServerDetector.isResin()) {
                _results = null;
                _resultsVar = DEFAULT_RESULTS_VAR;
                _total = 0;
                _totalVar = DEFAULT_TOTAL_VAR;
            }
        }
    }

    @Override
    public int doStartTag() throws JspException {
        SearchContainerTag<R> searchContainerTag = (SearchContainerTag<R>) findAncestorWithClass(this,
                SearchContainerTag.class);

        if (searchContainerTag == null) {
            throw new JspTagException("Requires liferay-ui:search-container");
        }

        if (_results == null) {
            pageContext.setAttribute(_resultsVar, new ArrayList<R>());
            pageContext.setAttribute(_totalVar, 0);
        }

        return EVAL_BODY_INCLUDE;
    }

    public List<R> getResults() {
        return _results;
    }

    public String getResultsVar() {
        return _resultsVar;
    }

    public int getTotal() {
        return _total;
    }

    public String getTotalVar() {
        return _totalVar;
    }

    public void setResults(List<R> results) {
        _results = results;
    }

    public void setResultsVar(String resultsVar) {
        _resultsVar = resultsVar;
    }

    public void setTotal(int total) {
        _total = total;
    }

    public void setTotalVar(String totalVar) {
        _totalVar = totalVar;
    }

    private List<R> _results;
    private String _resultsVar = DEFAULT_RESULTS_VAR;
    private int _total;
    private String _totalVar = DEFAULT_TOTAL_VAR;

}