Java tutorial
/* * Vulcan Build Manager * Copyright (C) 2005-2012 Chris Eldredge * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ package net.sourceforge.vulcan.web.struts.actions; import java.io.FileNotFoundException; import java.lang.reflect.Array; import java.lang.reflect.InvocationTargetException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import net.sourceforge.vulcan.dto.BuildToolConfigDto; import net.sourceforge.vulcan.dto.PluginConfigDto; import net.sourceforge.vulcan.dto.PluginProfileDto; import net.sourceforge.vulcan.dto.ProjectConfigDto; import net.sourceforge.vulcan.dto.RepositoryAdaptorConfigDto; import net.sourceforge.vulcan.exception.CannotCreateDirectoryException; import net.sourceforge.vulcan.exception.DuplicatePluginIdException; import net.sourceforge.vulcan.exception.InvalidPluginLayoutException; import net.sourceforge.vulcan.exception.PluginLoadFailureException; import net.sourceforge.vulcan.exception.PluginNotConfigurableException; import net.sourceforge.vulcan.exception.StoreException; import net.sourceforge.vulcan.exception.ValidationException; import net.sourceforge.vulcan.web.struts.forms.PluginConfigForm; import net.sourceforge.vulcan.web.struts.forms.ProjectConfigForm; import org.apache.commons.beanutils.PropertyUtils; import org.apache.commons.lang.StringUtils; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.ActionMessage; import org.apache.struts.action.ActionMessages; import org.springframework.beans.BeanWrapper; import org.springframework.beans.BeanWrapperImpl; public final class ManagePluginAction extends BaseDispatchAction { public ActionForward upload(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { final PluginConfigForm configForm = (PluginConfigForm) form; try { stateManager.getPluginManager().importPluginZip(configForm.getPluginFile().getInputStream()); saveSuccessMessage(request); return mapping.findForward("pluginList"); } catch (InvalidPluginLayoutException e) { saveError(request, ActionMessages.GLOBAL_MESSAGE, new ActionMessage("errors.plugin.layout")); } catch (DuplicatePluginIdException e) { saveError(request, ActionMessages.GLOBAL_MESSAGE, new ActionMessage("errors.plugin.duplicate", new Object[] { e.getId() })); } catch (CannotCreateDirectoryException e) { saveError(request, ActionMessages.GLOBAL_MESSAGE, new ActionMessage("errors.plugin.store.failure.dir", new Object[] { e.getDirectory() })); } catch (StoreException e) { saveError(request, ActionMessages.GLOBAL_MESSAGE, new ActionMessage("errors.plugin.store.failure", new Object[] { e.getMessage() })); } catch (PluginLoadFailureException e) { saveError(request, ActionMessages.GLOBAL_MESSAGE, new ActionMessage("errors.plugin.load.failure", new Object[] { e.getMessage() })); } return mapping.getInputForward(); } public ActionForward delete(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { final PluginConfigForm configForm = (PluginConfigForm) form; try { stateManager.removePlugin(configForm.getPluginId()); saveSuccessMessage(request); return mapping.findForward("pluginList"); } catch (StoreException e) { if (e.getCause() instanceof FileNotFoundException) { saveError(request, ActionMessages.GLOBAL_MESSAGE, new ActionMessage("errors.plugin.not.found")); return mapping.getInputForward(); } return mapping.findForward("pluginLocked"); } } public ActionForward update(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { final PluginConfigForm configForm = (PluginConfigForm) form; if (!validatePluginConfig(request, configForm)) { setHelpAttributes(request, configForm); return mapping.findForward("configure"); } if (configForm.isDirty()) { stateManager.updatePluginConfig(configForm.getPluginConfig(), configForm.getRenamedProfiles()); saveSuccessMessage(request); } else { addMessage(request, "warnings", ActionMessages.GLOBAL_MESSAGE, new ActionMessage("warnings.no.change.made")); } return mapping.findForward("pluginList"); } public ActionForward configure(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { final PluginConfigForm configForm = (PluginConfigForm) form; if (configForm.isNested()) { configForm.introspect(request); setHelpAttributes(request, configForm); return mapping.findForward("configure"); } try { final String pluginId = configForm.getPluginId(); final PluginConfigDto config = stateManager.getPluginManager().getPluginConfigInfo(pluginId); configForm.setPluginConfig(request, config, false); setHelpAttributes(request, configForm); return mapping.findForward("configure"); } catch (PluginNotConfigurableException e) { super.saveError(request, ActionMessages.GLOBAL_MESSAGE, new ActionMessage("errors.plugin.not.configurable")); return mapping.getInputForward(); } } public final ActionForward back(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { final PluginConfigForm configForm = (PluginConfigForm) form; if (!validatePluginConfig(request, configForm)) { setHelpAttributes(request, configForm); return mapping.findForward("configure"); } configForm.resortArrayIfNecessary(); if (configForm.isProjectPlugin() && !configForm.isNested()) { putConfigInProjectForm(mapping, request, configForm.getPluginConfig()); return mapping.findForward("projectDetails"); } final Object focusObject = configForm.getFocusObject(); if (focusObject instanceof PluginProfileDto) { final PluginProfileDto pluginProfileDto = (PluginProfileDto) focusObject; if (pluginProfileDto.isRenamed()) { configForm.getRenamedProfiles().add(pluginProfileDto); } } String focus = configForm.getFocus(); focus = focus.substring(0, focus.lastIndexOf(".")); configForm.setFocus(focus); configForm.introspect(request); setHelpAttributes(request, configForm); return mapping.findForward("configure"); } public final ActionForward add(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { final PluginConfigForm configForm = (PluginConfigForm) form; final String target = configForm.getTarget(); final BeanWrapper bw = new BeanWrapperImpl(form); final Class<?> type = PropertyUtils.getPropertyType(form, target).getComponentType(); final int i; Object[] array = (Object[]) bw.getPropertyValue(target); if (array == null) { array = (Object[]) Array.newInstance(type, 1); i = 0; } else { i = array.length; Object[] tmp = (Object[]) Array.newInstance(type, i + 1); System.arraycopy(array, 0, tmp, 0, i); array = tmp; } array[i] = stateManager.getPluginManager().createObject(configForm.getPluginId(), type.getName()); bw.setPropertyValue(target, array); configForm.setFocus(target + "[" + i + "]"); configForm.introspect(request); setHelpAttributes(request, configForm); return mapping.findForward("configure"); } public final ActionForward remove(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { final PluginConfigForm configForm = (PluginConfigForm) form; final String target = configForm.getTarget(); final String[] split = target.split("\\["); final String arrayProperty = split[0]; final int index = Integer.parseInt(split[1].substring(0, split[1].length() - 1)); final BeanWrapper bw = new BeanWrapperImpl(form); final Class<?> type = PropertyUtils.getPropertyType(form, arrayProperty).getComponentType(); Object[] array = (Object[]) bw.getPropertyValue(arrayProperty); Object[] tmp = (Object[]) Array.newInstance(type, array.length - 1); System.arraycopy(array, 0, tmp, 0, index); System.arraycopy(array, index + 1, tmp, index, array.length - index - 1); bw.setPropertyValue(arrayProperty, tmp); configForm.putBreadCrumbsInRequest(request); return mapping.findForward("configure"); } private void putConfigInProjectForm(ActionMapping mapping, HttpServletRequest request, PluginConfigDto config) { final ProjectConfigForm form = (ProjectConfigForm) request.getSession().getAttribute("projectConfigForm"); if (form == null) { throw new IllegalStateException(); } final ProjectConfigDto projectConfig = form.getProjectConfig(); if (config instanceof BuildToolConfigDto) { projectConfig.setBuildToolConfig((BuildToolConfigDto) config); } else { projectConfig.setRepositoryAdaptorConfig((RepositoryAdaptorConfigDto) config); } } private boolean validatePluginConfig(HttpServletRequest request, PluginConfigForm form) { final String focus = form.getFocus(); final Object o; try { try { o = PropertyUtils.getProperty(form, focus); } catch (InvocationTargetException e) { throw e.getCause(); } } catch (Throwable e) { if (e instanceof RuntimeException) { throw (RuntimeException) e; } throw new RuntimeException(e); } if (o instanceof PluginConfigDto) { try { ((PluginConfigDto) o).validate(); } catch (ValidationException e) { final ActionMessages errors = new ActionMessages(); convertExceptionToActionMessages(e, errors, focus); saveErrors(request, errors); return false; } } return true; } private void convertExceptionToActionMessages(ValidationException validationException, final ActionMessages errors, final String focus) { for (ValidationException e : validationException) { String propertyName = e.getPropertyName(); if (StringUtils.isBlank(propertyName)) { propertyName = ActionMessages.GLOBAL_MESSAGE; } else { propertyName = focus + "." + propertyName; } errors.add(propertyName, new ActionMessage(e.getKey(), e.getArgs())); } } private void setHelpAttributes(HttpServletRequest request, PluginConfigForm configForm) { final Object focusObject = configForm.getFocusObject(); final PluginConfigDto pluginConfig; if (focusObject instanceof PluginConfigDto) { pluginConfig = (PluginConfigDto) focusObject; } else { pluginConfig = configForm.getPluginConfig(); } request.setAttribute("helpUrl", pluginConfig.getHelpUrl()); request.setAttribute("helpTopic", pluginConfig.getHelpTopic()); } }