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|
/*
* pour l'instant cree un fichier PDF vide en parant du .jrxml
*/
package jasperxml01;
// http://82.247.148.50/jasper204/servlet/jasperxml01.Demo4
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import net.sf.jasperreports.engine.*;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class Demo4 extends HttpServlet
{
/**
*
*/
public void service(
HttpServletRequest request,
HttpServletResponse response
) throws IOException, ServletException
{
ServletContext context = this.getServletConfig().getServletContext();
String xmlFileName = context.getRealPath("/reports/addressbook.xml"); // fichier de donnee Initiale
String jrxmlFileName = context.getRealPath("/reports/Addressbook.jrxml"); // fichier de conception initiale
//Uniquement pour les parametres
File reportFile = new File(context.getRealPath("/reports/Addressbook.jrxml"));
if (!reportFile.exists())
throw new JRRuntimeException("File WebappReport.jasper not found. The report design must be compiled first.");
String recordPath = "/addressbook/category/person";
System.out.println("demo4 "+xmlFileName);
System.out.println("demo4 "+jrxmlFileName);
// recuperation des Donées XML
JRXMLDataSource jrxmlds = new JRXMLDataSource(xmlFileName,recordPath);
HashMap hm = new HashMap();
hm.put("ReportTitle", "Address Report");
hm.put("BaseDir", reportFile.getParentFile());
byte[] bytes = null;
try
{
bytes = JasperRunManager.runReportToPdf(JasperCompileManager.compileReport(jrxmlFileName), hm, jrxmlds);
System.out.println("demo4 bytes.length="+bytes.length);
}
catch (JRException e)
{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>JasperReports - Web Application Sample</title>");
out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"../stylesheet.css\" title=\"Style\">");
out.println("</head>");
out.println("<body bgcolor=\"white\">");
out.println("<span class=\"bnew\">JasperReports encountered this error :</span>");
out.println("<pre>");
e.printStackTrace(out);
out.println("</pre>");
out.println("</body>");
out.println("</html>");
return;
}
if (bytes != null && bytes.length > 0)
{
response.setContentType("application/pdf");
response.setContentLength(bytes.length);
ServletOutputStream ouputStream = response.getOutputStream();
ouputStream.write(bytes, 0, bytes.length);
ouputStream.flush();
ouputStream.close();
}
else
{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>JasperReports - Web Application Sample</title>");
out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"../stylesheet.css\" title=\"Style\">");
out.println("</head>");
out.println("<body bgcolor=\"white\">");
out.println("<span class=\"bold\">Empty response.</span>");
out.println("</body>");
out.println("</html>");
}
}
}
package jasperxml01;
public class FieldNode {
private java.util.Properties attributes;
private java.util.Vector children;
private String name = "";
private String value = null;
private int childIndex = 0;
//private booleanboolean consumed = false;
private boolean consumed = false;
public FieldNode(String name) {
super();
attributes = new java.util.Properties();
children = new java.util.Vector();
this.name = name;
}
public java.util.Properties getAttributes() {
return attributes;
}
public void setAttributes(java.util.Properties attributes) {
this.attributes = attributes;
}
public java.lang.String getName() {
return name;
}
public void setName(java.lang.String name) {
this.name = name;
}
public java.lang.String getValue() {
return value;
}
public java.lang.String getValue(String def) {
if (value == null || value.length() == 0) return def;
return value;
}
// public booleanboolean getValueAsBoolean() {
public boolean getValueAsBoolean() {
if (value != null && value.trim().equalsIgnoreCase("true")) return true;
return false;
}
public int getValueAsInteger() {
try {
return Integer.parseInt(value + "");
} catch (Exception ex) {
return 0;
}
}
public void setValue(java.lang.String value) {
this.value = value;
}
//public FieldNode getChild(java.lang.String childName, booleanboolean noNull) {
public FieldNode getChild(java.lang.String childName, boolean noNull) {
java.util.Enumeration enum_children = children.elements();
while (enum_children.hasMoreElements()) {
FieldNode cn = (FieldNode)enum_children.nextElement();
if (cn.getName().equals(childName)) return cn;
}
if (noNull) {
FieldNode cn = new FieldNode(childName);
this.children.add(cn);
return cn;
}
return null;
}
public java.util.Vector getChilddren(java.lang.String childName) {
java.util.Vector result = new java.util.Vector();
java.util.Enumeration enum_children = children.elements();
while (enum_children.hasMoreElements()) {
FieldNode cn = (FieldNode)enum_children.nextElement();
if (cn.getName().equals(childName)) {
result.add(cn);
}
}
return result;
}
public FieldNode getChild(java.lang.String childName) {
return getChild(childName, true);
}
public FieldNode getNextChild() {
if (this.getChildren().size() == 0) {
return new FieldNode("Unnamed");
}
if (childIndex < 0) {
childIndex = 0;
}
return (FieldNode)this.getChildren().elementAt(childIndex);
}
public java.lang.String getAttribute(String attrName) {
return attributes.getProperty(attrName);
}
public java.lang.String getAttribute(String attrName, String def) {
return attributes.getProperty(attrName, def);
}
// public booleanboolean getAttributeAsBoolean(String attrName) {
public boolean getAttributeAsBoolean(String attrName) {
String val = attributes.getProperty(attrName);
if (val != null && val.trim().equalsIgnoreCase("true")) return true;
return false;
}
public int getAttributeAsInteger(String attrName) {
try {
String val = attributes.getProperty(attrName);
return Integer.parseInt(val + "");
} catch (Exception ex) {
return 0;
}
}
public java.util.Vector getChildren() {
return children;
}
public void setChildren(java.util.Vector children) {
this.children = children;
}
// public booleanboolean next(String xmlPath) {
public boolean next(String xmlPath) {
if (xmlPath.startsWith("/")) {
xmlPath = xmlPath.substring(1);
}
if (xmlPath.indexOf("/") < 0) {
if (!consumed) {
return consumed = true;
} else return false;
}
xmlPath = xmlPath.substring(xmlPath.indexOf("/"));
if (childIndex == 0 && getChildren().size() == 0) {
if (!consumed) {
return consumed = true;
} else return false;
}
if (!getNextChild().next(xmlPath)) {
childIndex++;
if (childIndex < getChildren().size()) return getNextChild().next(xmlPath);
} else {
return true;
}
return false;
}
public String getChildsPath(String xmlPath) {
if (xmlPath.indexOf("/") == xmlPath.lastIndexOf("/")) {
return "";
}
xmlPath = xmlPath.substring(xmlPath.indexOf("/") + 1);
return this.getNextChild().getName() + "(" + childIndex + ")::" + this.getNextChild().getChildsPath(xmlPath);
}
}
public class JRXMLDataSource implements net.sf.jasperreports.engine.JRDataSource {
private FieldNode rootFieldNode = null;
private String rowPath = "/";
private FieldNode actualPath = null;
public JRXMLDataSource(String uri, String rowPath) {
super();
this.rowPath = rowPath;
try {
DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
org.w3c.dom.Document doc = db.parse(uri);
build(doc);
} catch (Exception ex) {
ex.printStackTrace();
}
}
public JRXMLDataSource(java.io.File file, String rowPath) {
super();
this.rowPath = rowPath;
try {
DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
org.w3c.dom.Document doc = db.parse(file);
build(doc);
} catch (Exception ex) {
ex.printStackTrace();
}
}
public JRXMLDataSource(java.io.InputStream is, String rowPath) {
super();
this.rowPath = rowPath;
try {
DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
org.w3c.dom.Document doc = db.parse(is);
build(doc);
} catch (Exception ex) {
ex.printStackTrace();
}
}
public JRXMLDataSource(FieldNode rootFieldNode, String rowPath) {
super();
this.rowPath = rowPath;
this.rootFieldNode = rootFieldNode;
}
private void build(org.w3c.dom.Document doc) throws Exception {
Element element = doc.getDocumentElement();
rootFieldNode = createNode(element, null);
}
private FieldNode createNode(Node element, FieldNode parent) throws Exception {
FieldNode cn = new FieldNode(element.getNodeName());
NamedNodeMap attributes = element.getAttributes();
for (int i = 0; i < attributes.getLength(); ++i) {
Node node = attributes.item(i);
cn.getAttributes().setProperty(node.getNodeName(), node.getNodeValue());
}
NodeList nl = element.getChildNodes();
for (int i = 0; i < nl.getLength(); ++i) {
Node node = nl.item(i);
if (node.getNodeType() == Node.ELEMENT_NODE) {
createNode(node, cn);
} else if (node.getNodeType() == Node.CDATA_SECTION_NODE || node.getNodeType() == Node.TEXT_NODE) {
cn.setValue(node.getNodeValue());
}
}
if (parent != null) {
parent.getChildren().add(cn);
} else {
parent = cn;
}
return parent;
}
public Object getFieldValue(net.sf.jasperreports.engine.JRField jRField) throws net.sf.jasperreports.engine.JRException {
String path = jRField.getDescription();
Object val = getPathValue(rootFieldNode, path);
{
return val;
}
}
// public booleanboolean next() throws net.sf.jasperreports.engine.JRException {
public boolean next() throws net.sf.jasperreports.engine.JRException {
return rootFieldNode.next(this.rowPath);
}
public String getActualPath() {
String childPath = this.rowPath;
childPath = rowPath.substring(rootFieldNode.getName().length() + 1);
return rootFieldNode.getName() + "::" + rootFieldNode.getChildsPath(rowPath);
}
public static void main(String[] argv) {
JRXMLDataSource ds = new JRXMLDataSource("C:\\\\test_ireport.xml", "/addressbook/address/ciccio");
try {
System.out.println("starting");
while (ds.next()) {
System.out.println(ds.getActualPath());
}
System.out.println("finishing");
} catch (Exception ex) {
ex.printStackTrace();
}
}
private Object getPathValue(FieldNode startingNode, String path) {
String tag = "";
if (path == null) return startingNode.getValue();
if (path.startsWith("/")) path = path.substring(1);
String sub_path = "";
if (path.indexOf("+") >= 0) {
sub_path = path.substring(path.indexOf("+") + 1);
path = path.substring(0, path.indexOf("+") + 1);
}
if (path.indexOf("/") < 0) {
if (path.indexOf("@") >= 0) {
tag = path.substring(path.indexOf("@") + 1);
return startingNode.getAttribute(tag);
} else if (path.indexOf("*") >= 0) {
String childName = path.substring(path.indexOf("*") + 1);
FieldNode fn = new FieldNode(startingNode.getName());
fn.setAttributes(startingNode.getAttributes());
fn.setChildren(startingNode.getChilddren(childName));
return new JRXMLDataSource(fn, "/" + startingNode.getName() + "/" + childName);
} else if (path.indexOf("+") >= 0) {
String childToTake = sub_path;
childToTake = getNextNodeName(sub_path);
return getSubPathValue(startingNode.getChild(childToTake), sub_path);
} else {
return startingNode.getValue();
}
}
path = path.substring(path.indexOf("/") + 1);
path += sub_path;
return getPathValue(startingNode.getNextChild(), path);
}
private Object getSubPathValue(FieldNode startingNode, String path) {
String tag = "";
if (path == null) return startingNode.getValue() + "[" + path + "]";
if (path.startsWith("/")) path = path.substring(1);
if (path.indexOf("/") < 0) {
if (path.indexOf("@") >= 0) {
tag = path.substring(path.indexOf("@") + 1);
return startingNode.getAttribute(tag);
} else if (path.indexOf("*") >= 0) {
String childName = path.substring(path.indexOf("*") + 1);
FieldNode fn = new FieldNode(startingNode.getName());
fn.setAttributes(startingNode.getAttributes());
fn.setChildren(startingNode.getChilddren(childName));
return new JRXMLDataSource(fn, "/" + startingNode.getName() + "/" + childName);
} else {
return startingNode.getValue();
}
} else {
path = path.substring(path.indexOf("/") + 1);
String childToTake = path;
childToTake = getNextNodeName(path);
return getSubPathValue(startingNode.getChild(childToTake), path);
}
}
private static String getNextNodeName(String path) {
if (path == null || path.length() == 0) return "";
if (path.startsWith("/")) path = path.substring(1);
String childToTake = path;
if (path.indexOf("/") >= 0) {
childToTake = path.substring(0, path.indexOf("/"));
}
if (childToTake.indexOf("@") >= 0) {
childToTake = childToTake.substring(0, path.indexOf("@"));
}
if (childToTake.indexOf("*") >= 0) {
childToTake = childToTake.substring(0, path.indexOf("*"));
}
return childToTake;
}
} |
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