Java tutorial
/** * Copyright (c) 2000-present Liferay, Inc. All rights reserved. * * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or (at your option) * any later version. * * This library 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 Lesser General Public License for more * details. */ package com.liferay.dynamic.data.mapping.internal.util; import com.liferay.dynamic.data.mapping.constants.DDMWebKeys; import com.liferay.dynamic.data.mapping.model.DDMStructure; import com.liferay.dynamic.data.mapping.model.DDMTemplate; import com.liferay.dynamic.data.mapping.service.DDMStructureLocalService; import com.liferay.dynamic.data.mapping.service.DDMStructureService; import com.liferay.dynamic.data.mapping.util.DDMTemplateHelper; import com.liferay.petra.string.StringPool; import com.liferay.portal.kernel.bean.BeanParamUtil; import com.liferay.portal.kernel.json.JSONArray; import com.liferay.portal.kernel.json.JSONFactory; import com.liferay.portal.kernel.json.JSONObject; import com.liferay.portal.kernel.template.StringTemplateResource; import com.liferay.portal.kernel.template.Template; import com.liferay.portal.kernel.template.TemplateConstants; import com.liferay.portal.kernel.template.TemplateManagerUtil; import com.liferay.portal.kernel.template.TemplateResource; import com.liferay.portal.kernel.template.TemplateVariableDefinition; import com.liferay.portal.kernel.template.TemplateVariableGroup; import com.liferay.portal.kernel.theme.ThemeDisplay; import com.liferay.portal.kernel.util.Portal; import com.liferay.portal.kernel.util.WebKeys; import com.liferay.portal.template.TemplateContextHelper; import java.lang.reflect.Field; import java.lang.reflect.Method; import java.util.ArrayList; import java.util.Collections; import java.util.LinkedHashSet; import java.util.List; import java.util.Map; import java.util.Set; import javax.servlet.http.HttpServletRequest; import org.osgi.service.component.annotations.Component; import org.osgi.service.component.annotations.Reference; /** * @author Juan Fernndez * @author Jorge Ferrer */ @Component(immediate = true) public class DDMTemplateHelperImpl implements DDMTemplateHelper { @Override public DDMStructure fetchStructure(DDMTemplate template) { try { long classNameId = _portal.getClassNameId(DDMStructure.class); if (template.getClassNameId() == classNameId) { return _ddmStructureLocalService.fetchDDMStructure(template.getClassPK()); } } catch (Exception e) { } return null; } @Override public String getAutocompleteJSON(HttpServletRequest request, String language) throws Exception { JSONObject jsonObject = _jsonFactory.createJSONObject(); JSONObject typesJSONObject = _jsonFactory.createJSONObject(); JSONObject variablesJSONObject = _jsonFactory.createJSONObject(); for (TemplateVariableDefinition templateVariableDefinition : getAutocompleteTemplateVariableDefinitions( request, language)) { Class<?> clazz = templateVariableDefinition.getClazz(); if (clazz == null) { variablesJSONObject.put(templateVariableDefinition.getName(), StringPool.BLANK); } else { if (!typesJSONObject.has(clazz.getName())) { typesJSONObject.put(clazz.getName(), getAutocompleteClassJSONObject(clazz)); } variablesJSONObject.put(templateVariableDefinition.getName(), getAutocompleteVariableJSONObject(clazz)); } } jsonObject.put("types", typesJSONObject); jsonObject.put("variables", variablesJSONObject); return jsonObject.toString(); } @Override public boolean isAutocompleteEnabled(String language) { if (language.equals(TemplateConstants.LANG_TYPE_FTL) || language.equals(TemplateConstants.LANG_TYPE_VM)) { return true; } return false; } protected JSONObject getAutocompleteClassJSONObject(Class<?> clazz) { JSONObject typeJSONObject = _jsonFactory.createJSONObject(); for (Field field : clazz.getFields()) { JSONObject fieldJSONObject = getAutocompleteVariableJSONObject(field.getType()); typeJSONObject.put(field.getName(), fieldJSONObject); } for (Method method : clazz.getMethods()) { JSONObject methodJSONObject = _jsonFactory.createJSONObject(); JSONArray parametersTypesArray = _jsonFactory.createJSONArray(); Class<?>[] parameterTypes = method.getParameterTypes(); for (Class<?> parameterType : parameterTypes) { parametersTypesArray.put(parameterType.getCanonicalName()); } methodJSONObject.put("argumentTypes", parametersTypesArray); Class<?> returnTypeClass = method.getReturnType(); methodJSONObject.put("returnType", returnTypeClass.getName()); methodJSONObject.put("type", "Method"); typeJSONObject.put(method.getName(), methodJSONObject); } return typeJSONObject; } protected List<TemplateVariableDefinition> getAutocompleteTemplateVariableDefinitions( HttpServletRequest request, String language) throws Exception { if (!isAutocompleteEnabled(language)) { return Collections.emptyList(); } Set<TemplateVariableDefinition> templateVariableDefinitions = new LinkedHashSet<>(); // Declared variables ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY); DDMTemplate ddmTemplate = (DDMTemplate) request.getAttribute(DDMWebKeys.DYNAMIC_DATA_MAPPING_TEMPLATE); long classPK = BeanParamUtil.getLong(ddmTemplate, request, "classPK"); long classNameId = BeanParamUtil.getLong(ddmTemplate, request, "classNameId"); if (classPK > 0) { DDMStructure ddmStructure = _ddmStructureService.getStructure(classPK); classNameId = ddmStructure.getClassNameId(); } else if (ddmTemplate != null) { classNameId = ddmTemplate.getClassNameId(); } Map<String, TemplateVariableGroup> templateVariableGroups = TemplateContextHelper .getTemplateVariableGroups(classNameId, classPK, language, themeDisplay.getLocale()); for (TemplateVariableGroup templateVariableGroup : templateVariableGroups.values()) { if (!templateVariableGroup.isAutocompleteEnabled()) { continue; } templateVariableDefinitions.addAll(templateVariableGroup.getTemplateVariableDefinitions()); } // Other variables TemplateResource templateResource = new StringTemplateResource(_TEMPLATE_ID, _TEMPLATE_CONTENT); Template template = TemplateManagerUtil.getTemplate(language, templateResource, false); for (String key : template.getKeys()) { Object value = template.get(key); if (value == null) { continue; } TemplateVariableDefinition variableDefinition = new TemplateVariableDefinition(key, value.getClass(), key, (String) null); templateVariableDefinitions.add(variableDefinition); } return new ArrayList<>(templateVariableDefinitions); } protected JSONObject getAutocompleteVariableJSONObject(Class<?> clazz) { JSONObject jsonObject = _jsonFactory.createJSONObject(); jsonObject.put("type", clazz.getName()); return jsonObject; } @Reference(unbind = "-") protected void setDDMStructureLocalService(DDMStructureLocalService ddmStructureLocalService) { _ddmStructureLocalService = ddmStructureLocalService; } @Reference(unbind = "-") protected void setDDMStructureService(DDMStructureService ddmStructureService) { _ddmStructureService = ddmStructureService; } @Reference(unbind = "-") protected void setJSONFactory(JSONFactory jsonFactory) { _jsonFactory = jsonFactory; } private static final String _TEMPLATE_CONTENT = "# Placeholder"; private static final String _TEMPLATE_ID = "0"; private DDMStructureLocalService _ddmStructureLocalService; private DDMStructureService _ddmStructureService; private JSONFactory _jsonFactory; @Reference private Portal _portal; }