Java tutorial
/* * Copyright (c) 2010-2011, Martijn Brinkers, Djigzo. * * This file is part of Djigzo email encryption. * * Djigzo is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License * version 3, 19 November 2007 as published by the Free Software * Foundation. * * Djigzo 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public * License along with Djigzo. If not, see <http://www.gnu.org/licenses/> * * Additional permission under GNU AGPL version 3 section 7 * * If you modify this Program, or any covered work, by linking or * combining it with saaj-api-1.3.jar, saaj-impl-1.3.jar, * wsdl4j-1.6.1.jar (or modified versions of these libraries), * containing parts covered by the terms of Common Development and * Distribution License (CDDL), Common Public License (CPL) the * licensors of this Program grant you additional permission to * convey the resulting work. */ package mitm.djigzo.web.components; import java.util.Collections; import java.util.HashSet; import java.util.LinkedList; import java.util.List; import java.util.Set; import mitm.application.djigzo.admin.FactoryRoles; import mitm.application.djigzo.ws.PolicyPatternDTO; import mitm.application.djigzo.ws.PolicyPatternNodeDTO; import mitm.common.dlp.PolicyViolationPriority; import mitm.common.ws.WebServiceCheckedException; import mitm.djigzo.web.common.YesNo; import mitm.djigzo.web.pages.dlp.patterns.PatternsEdit; import mitm.djigzo.web.pages.dlp.patterns.PatternsGroup; import mitm.djigzo.web.pages.dlp.patterns.PatternsRename; import mitm.djigzo.web.pages.dlp.patterns.PatternsUsage; import org.apache.commons.lang.StringUtils; import org.apache.commons.lang.text.StrBuilder; import org.apache.tapestry5.Asset; import org.apache.tapestry5.BindingConstants; import org.apache.tapestry5.ComponentEventCallback; import org.apache.tapestry5.ComponentResources; import org.apache.tapestry5.Link; import org.apache.tapestry5.annotations.Component; import org.apache.tapestry5.annotations.IncludeJavaScriptLibrary; import org.apache.tapestry5.annotations.IncludeStylesheet; import org.apache.tapestry5.annotations.OnEvent; import org.apache.tapestry5.annotations.Parameter; import org.apache.tapestry5.annotations.Path; import org.apache.tapestry5.annotations.Persist; import org.apache.tapestry5.annotations.SetupRender; import org.apache.tapestry5.beaneditor.BeanModel; import org.apache.tapestry5.corelib.components.Grid; import org.apache.tapestry5.grid.GridDataSource; import org.apache.tapestry5.internal.TapestryInternalUtils; import org.apache.tapestry5.ioc.Messages; import org.apache.tapestry5.ioc.annotations.Inject; import org.apache.tapestry5.json.JSONObject; import org.apache.tapestry5.services.BeanModelSource; import org.apache.tapestry5.services.Request; import org.springframework.security.annotation.Secured; /** * Grid for showing DLP pattern's. * * @author Martijn Brinkers * */ @IncludeStylesheet("context:styles/components/dlpPatternGrid.css") @IncludeJavaScriptLibrary("dlpPatternGrid.js") public class DLPPatternGrid { /* * All events */ public static final String DELETE_PATTERN_EVENT = "dlppatterngrid-delete-pattern"; public static final String IS_DISABLED_EVENT = "dlppatterngrid-disabled"; public static final String IS_SELECTED_EVENT = "dlppatterngrid-selected"; public static final String IS_IN_USE_EVENT = "dlppatterngrid-inuse"; @Inject private Request request; @Parameter(required = true) private GridDataSource source; @Parameter(required = false, defaultPrefix = BindingConstants.LITERAL) private boolean addNameLink; @Parameter(required = false, defaultPrefix = BindingConstants.LITERAL) private String deleteTitle = "Delete pattern"; @Parameter(required = false, defaultPrefix = BindingConstants.LITERAL) private boolean removeDelete; /* * The PolicyPatternNode currently being drawn by the grid (is set by the grid component) */ private PolicyPatternNodeDTO policyPatternNode; /* * Set of the selected PolicyPatternNode (names of the PolicyPatternNode's). */ @Persist private Set<String> selected; @SuppressWarnings("unused") @Component(parameters = { "source = source", "model = model", "row = policyPatternNode", "volatile = true", "reorder = prop:reorder", "rowsPerPage = inherit:rowsPerPage" }) private Grid patternGrid; @Inject private BeanModelSource beanModelSource; @Inject private ComponentResources resources; @Inject @Path("context:icons/cross.png") private Asset deleteAsset; @Inject @Path("context:icons/group.png") private Asset groupAsset; @Inject private Messages messages; @SetupRender public void setupGrid() { if (selected == null) { selected = Collections.synchronizedSet(new HashSet<String>()); } else { selected.clear(); } } public void setPolicyPatternNode(PolicyPatternNodeDTO policyPatternNode) { this.policyPatternNode = policyPatternNode; } public PolicyPatternNodeDTO getPolicyPatternNode() { return policyPatternNode; } public PolicyPatternDTO getPolicyPattern() { return policyPatternNode.getPolicyPattern(); } public String getFriendlyPriority() { PolicyViolationPriority priority = getPolicyPattern().getPriority(); /* * Use some Tapestry internal function to get a friendly name for the enum */ return priority != null ? TapestryInternalUtils.getLabelForEnum(messages, getPolicyPattern().getPriority()) : ""; } public Set<String> getSelected() { return selected; } public boolean isSelect() { boolean value = selected.contains(policyPatternNode.getName()); if (!value) { final List<YesNo> resultHolder = new LinkedList<YesNo>(); ComponentEventCallback<YesNo> callback = new ComponentEventCallback<YesNo>() { @Override public boolean handleResult(YesNo result) { resultHolder.add(result); return true; } }; resources.triggerEvent(IS_SELECTED_EVENT, new Object[] { policyPatternNode }, callback); if (resultHolder.size() > 0) { value = resultHolder.get(0) == YesNo.YES; } } return value; } public void setSelect(boolean value) { /* * Ignored. Checkbox values will be handled using EventCheckbox (see onCheckboxClick) */ } public GridDataSource getSource() { return source; } public Asset getDeleteAsset() { return deleteAsset; } public Asset getGroupAsset() { return groupAsset; } public boolean isGroup() { return policyPatternNode.getPolicyPattern() == null; } public BeanModel<PolicyPatternNodeDTO> getModel() { BeanModel<PolicyPatternNodeDTO> model = beanModelSource.createDisplayModel(PolicyPatternNodeDTO.class, resources.getMessages()); model.exclude("inherited", "hasChilds"); if (!removeDelete) { model.add("delete", null); } model.add("select", null); model.add("regexp", null); model.add("description", null); model.add("matchFilter", null); model.add("threshold", null); model.add("priority", null); /* * Disable all sorting */ for (String column : model.getPropertyNames()) { model.get(column).sortable(false); } return model; } public String getReorder() { StrBuilder sb = new StrBuilder(); sb.append("select,"); if (!removeDelete) { sb.append("delete,"); } sb.append("name,regexp,description,threshold,priority,matchFilter"); return sb.toString(); } public boolean isDisabled() { boolean disabled = false; final List<YesNo> resultHolder = new LinkedList<YesNo>(); ComponentEventCallback<YesNo> callback = new ComponentEventCallback<YesNo>() { @Override public boolean handleResult(YesNo result) { resultHolder.add(result); return true; } }; resources.triggerEvent(IS_DISABLED_EVENT, new Object[] { policyPatternNode }, callback); if (resultHolder.size() > 0) { disabled = resultHolder.get(0) == YesNo.YES; } return disabled; } public boolean isInUse() { boolean inUse = false; final List<YesNo> resultHolder = new LinkedList<YesNo>(); ComponentEventCallback<YesNo> callback = new ComponentEventCallback<YesNo>() { @Override public boolean handleResult(YesNo result) { resultHolder.add(result); return true; } }; resources.triggerEvent(IS_IN_USE_EVENT, new Object[] { policyPatternNode }, callback); if (resultHolder.size() > 0) { inUse = resultHolder.get(0) == YesNo.YES; } return inUse; } @OnEvent(component = "deletePattern") @Secured({ FactoryRoles.ROLE_ADMIN, FactoryRoles.ROLE_DLP_MANAGER }) protected void deletePattern(String name) throws WebServiceCheckedException { resources.triggerEvent(DELETE_PATTERN_EVENT, new Object[] { name }, null); } /* * Event handler called when the checkbox is clicked. */ public void onCheckboxEvent() { String data = request.getParameter("data"); if (StringUtils.isEmpty(data)) { throw new IllegalArgumentException("data is missing."); } JSONObject json = new JSONObject(data); String element = json.getString("element"); boolean checked = json.getBoolean("checked"); if (checked) { selected.add(element); } else { selected.remove(element); } } public Link getPatternEditLink() { return resources.createPageLink(PatternsEdit.class, false, policyPatternNode.getName()); } public Link getPatternRenameLink() { return resources.createPageLink(PatternsRename.class, false, policyPatternNode.getName()); } public Link getGroupEditLink() { return resources.createPageLink(PatternsGroup.class, false, policyPatternNode.getName()); } public Link getGroupRenameLink() { return resources.createPageLink(PatternsRename.class, false, policyPatternNode.getName()); } public Link getUsageLink() { return resources.createPageLink(PatternsUsage.class, false, policyPatternNode.getName()); } public boolean isAddNameLink() { return addNameLink; } public String getDeleteTitle() { return deleteTitle; } }