Java tutorial
// ============================================================================ // // Copyright (C) 2006-2017 Talend Inc. - www.talend.com // // This source code is available under agreement available at // %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt // // You should have received a copy of the agreement // along with this program; if not, write to Talend SA // 9 rue Pages 92150 Suresnes, France // // ============================================================================ package com.amalto.workbench.widgets; import java.io.InputStream; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.eclipse.jface.text.BadLocationException; import org.eclipse.jface.text.Document; import org.eclipse.jface.text.source.SourceViewer; import org.eclipse.jface.text.source.VerticalRuler; import org.eclipse.jface.window.Window; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.StyledText; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.List; import org.eclipse.ui.IWorkbenchPartSite; import org.eclipse.ui.PlatformUI; import org.w3c.dom.NamedNodeMap; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import com.amalto.workbench.dialogs.XpathSelectDialog; import com.amalto.workbench.i18n.Messages; import com.amalto.workbench.models.KeyValue; import com.amalto.workbench.models.TreeParent; import com.amalto.workbench.models.XPathFunc; import com.amalto.workbench.utils.WidgetUtils; public class SchematronExpressBuilder { private static Log log = LogFactory.getLog(SchematronExpressBuilder.class); protected Composite parent; private SourceViewer sourceViewer; String value; private StyledText testResult; java.util.List<XPathFunc> categories; private List categoryList; XPathFunc curfc; private List funcList; private StyledText helpTxt; String conceptName; String concept; protected boolean isAbsoluteXPath = false; // Modified by hbhong,to fix bug 21784, add a treeParent field to receive TreeParent object protected TreeParent treeParent; // schematron using XPathFunc.xml, others using StandardXPathFunc.xml protected boolean isSchematron; private Composite com; public void setTreeParent(TreeParent treeParent) { this.treeParent = treeParent; } // The ending| bug:21784 public SchematronExpressBuilder(Composite parent, String value, String conceptName) { this(parent, value, conceptName, false, true); } public SchematronExpressBuilder(Composite parent, String value, String conceptName, boolean isAbsoluteXPath, boolean isSchematron) { this.parent = parent; this.value = value; this.conceptName = conceptName; this.isAbsoluteXPath = isAbsoluteXPath; this.isSchematron = isSchematron; try { parseFunxml(); } catch (Exception e) { // TODO Auto-generated catch block log.error(e.getMessage(), e); } create(); } private GridLayout getLayout(int num) { GridLayout layout = new GridLayout(num, false); layout.marginHeight = 1; layout.marginBottom = 0; layout.marginLeft = 0; layout.marginRight = 0; return layout; } private void insertText(String text) { Point sel = sourceViewer.getSelectedRange(); try { sourceViewer.getDocument().replace(sel.x, sel.y, text); sourceViewer.setSelectedRange(sel.x + text.length(), sel.y); } catch (BadLocationException e1) { log.error(e1.getMessage(), e1); } } private void parseFunxml() throws Exception { InputStream in = null; try { DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder builder = factory.newDocumentBuilder(); org.w3c.dom.Document document; if (isSchematron) { in = SchematronExpressBuilder.class.getResourceAsStream("XPathFunc.xml");//$NON-NLS-1$ } else { in = SchematronExpressBuilder.class.getResourceAsStream("StandardXPathFunc.xml");//$NON-NLS-1$ } document = builder.parse(in); NodeList list = document.getElementsByTagName("category");//$NON-NLS-1$ categories = new ArrayList<XPathFunc>(); for (int i = 0; i < list.getLength(); i++) { XPathFunc xpathFunc = new XPathFunc(); Node node = list.item(i);// get the number i node NamedNodeMap map = node.getAttributes(); Node nameNode = map.getNamedItem("name");//$NON-NLS-1$ xpathFunc.setCategory(nameNode.getTextContent()); java.util.List<KeyValue> keylist = new ArrayList<KeyValue>(); for (int j = 0; j < node.getChildNodes().getLength(); j++) { Node n = node.getChildNodes().item(j); NamedNodeMap fmap = n.getAttributes(); if (fmap != null && fmap.getLength() > 0) { Node n1 = fmap.getNamedItem("name");//$NON-NLS-1$ Node n2 = fmap.getNamedItem("help");//$NON-NLS-1$ String help = n2.getTextContent(); help = help.replaceAll("\\n", "\n");//$NON-NLS-1$//$NON-NLS-2$ KeyValue kv = new KeyValue(n1.getTextContent(), help); keylist.add(kv); } } Collections.sort(keylist, new Comparator<KeyValue>() { public int compare(KeyValue o1, KeyValue o2) { if (o1 != null && o2 != null) { return o1.key.compareTo(o2.key); } return 0; } }); xpathFunc.setFuncs(keylist); categories.add(xpathFunc); } } finally { if (in != null) { in.close(); } } } public void setEnable(boolean enable) { com.setEnabled(enable); com.setVisible(enable); } private void create() { com = new Composite(parent, SWT.NONE); com.setLayout(getLayout(3)); // expression Group expressG = new Group(com, SWT.NONE); expressG.setText(Messages.SchematronExpressBuilder_Expression); expressG.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 3, 2)); expressG.setLayout(getLayout(1)); // top button group Composite topCom = new Composite(expressG, 0); Button clearBtn = new Button(topCom, SWT.PUSH); topCom.setLayout(getLayout(4)); clearBtn.setText(Messages.SchematronExpressBuilder_Clear); clearBtn.setLayoutData(new GridData(SWT.RIGHT, SWT.FILL, false, false, 1, 1)); clearBtn.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { sourceViewer.setDocument(new Document(""));//$NON-NLS-1$ } }); org.eclipse.jface.text.Document doc = new org.eclipse.jface.text.Document(value); sourceViewer = new SourceViewer(expressG, new VerticalRuler(5), SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER); GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 6); gd.heightHint = 150; sourceViewer.getControl().setLayoutData(gd); WidgetUtils.initRedoUndo(sourceViewer); sourceViewer.setDocument(doc); // bottom button group Composite bottomCom = new Composite(expressG, 0); GridLayout ly = getLayout(4); bottomCom.setLayout(ly); Composite com1 = new Composite(bottomCom, 0); com1.setLayout(getLayout(4)); String[] strs1 = { "+", "-", "*", "div" };//$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$ for (String str : strs1) { final Button btn = new Button(com1, SWT.PUSH); btn.setText(str); btn.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { // getTextWidget().setText(getText() + btn.getText()); insertText(btn.getText()); } }); } Composite com2 = new Composite(bottomCom, 0); com2.setLayout(getLayout(4)); String[] strs2 = { "=", "!=", ">", "<" };//$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$ for (String str : strs2) { final Button btn = new Button(com2, SWT.PUSH); btn.setText(str); btn.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { // getTextWidget().setText(getText() + btn.getText()); insertText(btn.getText()); } }); } Composite com3 = new Composite(bottomCom, 0); com3.setLayout(getLayout(4)); String[] strs3 = { "and", "or" };//$NON-NLS-1$//$NON-NLS-2$ for (int i = 0; i < strs3.length; i++) { final Button btn = new Button(com3, SWT.PUSH); btn.setText(strs3[i]); btn.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { // getTextWidget().setText(getText() + btn.getText()); insertText(btn.getText()); } }); } Composite com4 = new Composite(bottomCom, 0); com4.setLayout(getLayout(3)); String[] strs4 = { ")", "(" };//$NON-NLS-1$//$NON-NLS-2$ for (int i = 0; i < strs4.length; i++) { final Button btn = new Button(com4, SWT.PUSH); btn.setText(strs4[i]); btn.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { // getTextWidget().setText(getText() + btn.getText()); insertText(btn.getText()); } }); } Button xpathButton = new Button(com4, SWT.PUSH); xpathButton.setText("xpath");//$NON-NLS-1$ xpathButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { XpathSelectDialog dlg = getXPathSelectDialog(); dlg.setConceptName(conceptName); // dlg.setContext(context); dlg.setBlockOnOpen(true); dlg.open(); if (dlg.getReturnCode() == Window.OK) { if (getTextWidget().getSelectionText().length() > 0) { // getTextWidget().setText(getText().replace(getTextWidget().getSelectionText(), // dlg.getXpath())); getTextWidget().replaceTextRange(getTextWidget().getSelectionRanges()[0], getTextWidget().getSelectionRanges()[1], dlg.getXpath()); } else { // getTextWidget().setText(getText()+dlg.getXpath()); insertText(dlg.getXpath()); } } } }); // //test // Group testG=new Group(com,SWT.NONE); // testG.setText("Test"); // GridData gd2=new GridData(SWT.FILL,SWT.FILL,true,true,1,2); // gd2.widthHint=190; // testG.setLayoutData(gd2); // testG.setLayout(getLayout(2)); // Button btnStartTest=new Button(testG,SWT.PUSH); // btnStartTest.setText("Start Test"); // btnStartTest.setLayoutData(new GridData(SWT.FILL,SWT.FILL,true,false,1,1)); // // Button btnCleartTest=new Button(testG,SWT.PUSH); // btnCleartTest.setText("Clear"); // btnCleartTest.setLayoutData(new GridData(SWT.FILL,SWT.FILL,true,false,1,1)); // // testResult=new StyledText(testG,SWT.V_SCROLL|SWT.BORDER); // testResult.setLayoutData(new GridData(SWT.FILL,SWT.FILL,true,true,2,3)); // btnCleartTest.addSelectionListener(new SelectionAdapter(){ // @Override // public void widgetSelected(SelectionEvent e) { // testResult.setText(""); // } // }); // categories Group categoryG = new Group(com, SWT.NONE); categoryG.setText(Messages.SchematronExpressBuilder_Categories); GridData gd1 = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1); gd1.heightHint = 200; gd1.widthHint = 140; categoryG.setLayoutData(gd1); categoryG.setLayout(getLayout(1)); categoryList = new List(categoryG, SWT.BORDER | SWT.V_SCROLL); categoryList.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); for (XPathFunc c : categories) { categoryList.add(c.getCategory()); } categoryList.addSelectionListener(new SelectionListener() { public void widgetDefaultSelected(SelectionEvent e) { } public void widgetSelected(SelectionEvent e) { funcList.removeAll(); String c = categoryList.getSelection()[0]; for (XPathFunc func : categories) { if (func.getCategory().equals(c)) { curfc = func; for (KeyValue kv : func.getFuncs()) { funcList.add(kv.key); } break; } } if (funcList.getItems().length > 0) { funcList.select(0); helpTxt.setText(curfc.getFuncs().get(0).value); } } }); // funcations Group functionG = new Group(com, SWT.NONE); functionG.setText(Messages.SchematronExpressBuilder_Functions); functionG.setLayout(getLayout(1)); GridData gd3 = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1); gd3.widthHint = 220; functionG.setLayoutData(gd3); funcList = new List(functionG, SWT.BORDER | SWT.V_SCROLL); funcList.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); funcList.addSelectionListener(new SelectionListener() { public void widgetDefaultSelected(SelectionEvent e) { getTextWidget().setText(getText() + funcList.getItem(funcList.getSelectionIndex())); } public void widgetSelected(SelectionEvent e) { String c = funcList.getSelection()[0]; for (KeyValue kv : curfc.getFuncs()) { if (kv.key.equals(c)) { helpTxt.setText(kv.value); break; } } } }); // help Group helpG = new Group(com, SWT.NONE); helpG.setText(Messages.SchematronExpressBuilder_Help); helpG.setLayout(getLayout(1)); helpG.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); helpTxt = new StyledText(helpG, SWT.BORDER | SWT.WRAP); GridData gd4 = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1); gd4.widthHint = 210; helpTxt.setLayoutData(gd4); } public StyledText getTextWidget() { return sourceViewer.getTextWidget(); } public String getText() { return sourceViewer.getTextWidget().getText(); } public SourceViewer getSourceViewer() { return sourceViewer; } protected XpathSelectDialog getXPathSelectDialog() { if (treeParent != null) { IWorkbenchPartSite site = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage() .getActivePart().getSite(); return new XpathSelectDialog(parent.getShell(), treeParent, Messages.SchematronExpressBuilder_selectXPath, site, false, null, isAbsoluteXPath); } else { return new XpathSelectDialog(parent.getShell(), treeParent, Messages.SchematronExpressBuilder_selectXPath, null, false, null, isAbsoluteXPath); } } }