printtask.java

esri的ArcGIS Server超级学习模板程序（for java）

package com.esri.solutions.jitk.web.tasks.print.browser;

import com.esri.adf.web.data.TocFunctionality;
import com.esri.adf.web.data.TocNode;
import com.esri.adf.web.data.TocNodeContent;
import com.esri.adf.web.data.WebMap;
import com.esri.adf.web.data.WebToc;
import com.esri.adf.web.data.graphics.GraphicsTocFunctionality;
import com.esri.adf.web.data.tasks.TaskInfo;
import com.esri.adf.web.faces.event.TaskEvent;
import com.esri.adf.web.util.ADFDownloadServlet;
import com.esri.adf.web.util.WebUtil;

import com.esri.solutions.jitk.web.tasks.RenderControlledTask;

import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;

import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.StringWriter;

import java.util.Collection;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.ServletRequest;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;


@SuppressWarnings({"serial",
    "unchecked"
})
public class PrintTask extends RenderControlledTask {
    private static Logger logger = LogManager.getLogger(PrintTask.class.getName());
    private static final String PRINT_TASK = "Print Task";
    private static final String ERROR_MSG = "printtask.ui.msg.error";
    private PrintTaskInfo taskInfo = null;
    private String taskName = null;
    private String title = null;
    private String footerNote = null;
    private String titleParam = null;
    private String resolutionParam = null;
    private String mapWidth = "";
    private String template = "";
    private String resolution = null;
    private String scale = "";
    private String printMap = "true";
    private String templateFolder = "/templates/jitk/print";
    private String printPropertiesLabel = null;
    private String specifyLayoutLabel = null;
    private String loadingMessageLabel = null;
    private String resultUrl = "";
    private Map<String, String> templateList = null;
    protected ResolutionMap _resolutionMap;
    protected MapWidthMap _mapWidthMap;

    public PrintTask() {
        setTaskInfo(new PrintTaskInfo());
        this.taskName = PRINT_TASK;

        _resolutionMap = new ResolutionMap();
        _mapWidthMap = new MapWidthMap();
    }

    public TaskInfo getTaskInfo() {
        if (this._context == null) {
            taskInfo.getTaskDescriptor().setDisabled(true);
        }

        if (this.title == null) {
            this.setTitle(this.getTitleParam());
        }

        if (this.resolution == null) {
            this.setResolution(this.getResolutionParam());
        }

        return this.taskInfo;
    }

    public void setTaskInfo(TaskInfo taskInfo) {
        this.taskInfo = (PrintTaskInfo) taskInfo;
        super.setTaskInfo(taskInfo);
    }

    public String getResultUrl() {
        return this.resultUrl;
    }

    public void setResultUrl(String resultUrl) {
        this.resultUrl = resultUrl;
    }

    public String getTaskName() {
        return taskName;
    }

    public void setTaskName(String taskName) {
        this.taskName = taskName;
    }

    /**
     * Get footer note
     */
    public String getFooterNote() {
        return this.footerNote;
    }

    /**
     * Set footer note
     */
    public void setFooterNote(String footerNote) {
        this.footerNote = footerNote;
    }

    public void setPrintPropertiesLabel(String printPropertiesLabel) {
        this.printPropertiesLabel = printPropertiesLabel;
    }

    public String getPrintPropertiesLabel() {
        return this.printPropertiesLabel;
    }

    public void setSpecifyLayoutLabel(String specifyLayoutLabel) {
        this.specifyLayoutLabel = specifyLayoutLabel;
    }

    public String getSpecifyLayoutLabel() {
        return this.specifyLayoutLabel;
    }

    public void setLoadingMessageLabel(String loadingMessageLabel) {
        this.loadingMessageLabel = loadingMessageLabel;
    }

    public String getLoadingMessageLabel() {
        return this.loadingMessageLabel;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getTitle() {
        return this.title;
    }

    public void setTitleParam(String titleParam) {
        this.titleParam = titleParam;
    }

    public String getTitleParam() {
        return this.titleParam;
    }

    public void setResolutionParam(String resolutionParam) {
        this.resolutionParam = resolutionParam;
    }

    public String getResolutionParam() {
        return this.resolutionParam;
    }

    public void setPrintMap(String printMap) {
        this.printMap = printMap;
    }

    public String getPrintMap() {
        return this.printMap;
    }

    public void setMapWidth(String mapWidth) {
        this.mapWidth = mapWidth;
    }

    public String getMapWidth() {
        return this.mapWidth;
    }

    public void setTemplate(String template) {
        this.template = template;
    }

    public String getTemplate() {
        return this.template;
    }

    public void setResolution(String resolution) {
        this.resolution = resolution;
    }

    public String getResolution() {
        return this.resolution;
    }

    public void setScale(String scale) {
        this.scale = scale;
    }

    public String getScale() {
        return this.scale;
    }

    public String getTemplateFolder() {
        return this.templateFolder;
    }

    public void setTemplateFolder(String templatePath) {
        this.templateFolder = templatePath;
    }

    public Map<String, String> getMapWidthList() {
        return _mapWidthMap;
    }

    public Map getResolutionList() {
        return _resolutionMap;
    }

    @SuppressWarnings("deprecation")
    public Map<String, String> getTemplateList() {
        if (templateList != null) {
            return templateList;
        }

        Map<String, String> templateList = new LinkedHashMap<String, String>();
        ServletRequest req = (ServletRequest) WebUtil.getExternalContext()
                                                     .getRequest();
        String tempDirName = req.getRealPath(getTemplateFolder());

        File f1 = new File(tempDirName);
        File[] strFilesDirs = f1.listFiles();

        for (int i = 0; i < strFilesDirs.length; i++) {
            if (strFilesDirs[i].isFile()) {
                String fullpath = strFilesDirs[i].toString();
                int pos = fullpath.lastIndexOf(System.getProperty(
                            "file.separator"));
                String filename = fullpath.substring(pos + 1);
                pos = filename.indexOf(".");

                if (pos >= 0) {
                    filename = filename.substring(0, pos);
                }

                // Only add it to the list if the extention ends in HTML
                if (fullpath.toLowerCase().endsWith(".html") ||
                        fullpath.toLowerCase().endsWith(".htm")) {
                    templateList.put(fullpath, filename);
                }
            }
        }

        return templateList;
    }

    private String ElementToString(Element a) {
        try {
            DOMSource source = new DOMSource(a);
            StringWriter writer = new StringWriter();
            StreamResult result = new StreamResult(writer);
            TransformerFactory tf = TransformerFactory.newInstance();
            Transformer transformer = tf.newTransformer();
            transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
            transformer.setOutputProperty(OutputKeys.METHOD, "xml");
            transformer.transform(source, result);

            return writer.toString();
        } catch (javax.xml.transform.TransformerException e) {
            logger.warn("Unable to convert element to string", e);
        }

        return "";
    }

    private static void replaceNode(String node2Replace,
        String nodeAttr2Replace, Node node2ReplaceWith, Node curNode) {
        try {
            if (curNode.getNodeType() != Node.ELEMENT_NODE) {
                System.err.println("Error: Search node is not of element type.");

                return;
            }

            if (!curNode.hasChildNodes()) {
                return;
            }

            NodeList list = curNode.getChildNodes();

            for (int i = 0; i < list.getLength(); i++) {
                Node subnode = list.item(i);

                if (subnode.getNodeType() == Node.ELEMENT_NODE) {
                    if (subnode.getNodeName().equals(node2Replace)) {
                        if (nodeAttr2Replace != null) {
                            NamedNodeMap namedNodeMap = subnode.getAttributes();
                            Node nameItem = namedNodeMap.getNamedItem("name");

                            if ((nameItem != null) &&
                                    nameItem.getNodeValue()
                                                .equalsIgnoreCase(nodeAttr2Replace)) {
                                subnode.getParentNode()
                                       .appendChild(node2ReplaceWith);
                                subnode.getParentNode().removeChild(subnode);
                            }