exportfilterutils.java

exTreme taglib的使用

/*
 * Copyright 2004 original author or authors.
 *
 * 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.extremecomponents.table.filter;

import javax.servlet.ServletRequest;

import org.apache.commons.lang.StringUtils;
import org.extremecomponents.table.bean.Table;
import org.extremecomponents.table.core.TableConstants;
import org.extremecomponents.table.handler.ExportHandler;

/**
 * Helpful public utilities for the Table and Tree Model
 * 
 * @author Jeff Johnston
 */
public final class ExportFilterUtils {
    private ExportFilterUtils() {
    }

    public static boolean isExportMode(ServletRequest request) {
        String table = request.getParameter(Table.EXTREME_TABLE);

        String exportName = null;

        if (StringUtils.isNotBlank(table)) {
            exportName = findExportName(request);
        }

        return StringUtils.isNotBlank(exportName);
    }

    public static String findInvokeExport(ServletRequest request) {
        String table = request.getParameter(Table.EXTREME_TABLE);

        if (StringUtils.isNotBlank(table)) {
            return request.getParameter(table + TableConstants.EXPORT);
        }

        return null;
    }

    public static String findExportName(ServletRequest request) {
        String table = request.getParameter(Table.EXTREME_TABLE);

        if (StringUtils.isNotBlank(table)) {
            return request.getParameter(table + ExportHandler.EXPORT_NAME);
        }

        return null;
    }
}