Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package org.apache.syncope.core.rest.controller; import java.lang.reflect.Method; import java.util.ArrayList; import java.util.List; import javax.persistence.EntityExistsException; import org.apache.commons.lang3.ArrayUtils; import org.apache.commons.lang3.StringUtils; import org.apache.syncope.common.to.AbstractSchemaTO; import org.apache.syncope.common.to.DerSchemaTO; import org.apache.syncope.common.to.SchemaTO; import org.apache.syncope.common.to.VirSchemaTO; import org.apache.syncope.common.types.AttributableType; import org.apache.syncope.common.types.ClientExceptionType; import org.apache.syncope.common.types.SchemaType; import org.apache.syncope.common.SyncopeClientException; import org.apache.syncope.core.persistence.beans.AbstractDerSchema; import org.apache.syncope.core.persistence.beans.AbstractNormalSchema; import org.apache.syncope.core.persistence.beans.AbstractVirSchema; import org.apache.syncope.core.persistence.dao.DerSchemaDAO; import org.apache.syncope.core.persistence.dao.NotFoundException; import org.apache.syncope.core.persistence.dao.SchemaDAO; import org.apache.syncope.core.persistence.dao.VirSchemaDAO; import org.apache.syncope.core.rest.data.SchemaDataBinder; import org.apache.syncope.core.util.AttributableUtil; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.security.access.prepost.PreAuthorize; import org.springframework.stereotype.Component; @Component public class SchemaController extends AbstractTransactionalController<SchemaTO> { @Autowired private SchemaDAO schemaDAO; @Autowired private DerSchemaDAO derSchemaDAO; @Autowired private VirSchemaDAO virSchemaDAO; @Autowired private SchemaDataBinder binder; private boolean doesSchemaExist(final SchemaType schemaType, final String name, final AttributableUtil attrUtil) { boolean found; switch (schemaType) { case VIRTUAL: found = virSchemaDAO.find(name, attrUtil.virSchemaClass()) != null; break; case DERIVED: found = derSchemaDAO.find(name, attrUtil.derSchemaClass()) != null; break; case NORMAL: found = schemaDAO.find(name, attrUtil.schemaClass()) != null; break; default: found = false; } return found; } @PreAuthorize("hasRole('SCHEMA_CREATE')") @SuppressWarnings("unchecked") public <T extends AbstractSchemaTO> T create(final AttributableType attrType, final SchemaType schemaType, final T schemaTO) { if (StringUtils.isBlank(schemaTO.getName())) { SyncopeClientException sce = SyncopeClientException.build(ClientExceptionType.RequiredValuesMissing); sce.getElements().add("Schema name"); throw sce; } final AttributableUtil attrUtil = AttributableUtil.getInstance(attrType); if (doesSchemaExist(schemaType, schemaTO.getName(), attrUtil)) { throw new EntityExistsException(schemaType + "/" + attrType + "/" + schemaTO.getName()); } T created; switch (schemaType) { case VIRTUAL: AbstractVirSchema virSchema = attrUtil.newVirSchema(); binder.create((VirSchemaTO) schemaTO, virSchema); virSchema = virSchemaDAO.save(virSchema); created = (T) binder.getVirSchemaTO(virSchema); break; case DERIVED: AbstractDerSchema derSchema = attrUtil.newDerSchema(); binder.create((DerSchemaTO) schemaTO, derSchema); derSchema = derSchemaDAO.save(derSchema); created = (T) binder.getDerSchemaTO(derSchema); break; case NORMAL: default: AbstractNormalSchema normalSchema = attrUtil.newSchema(); binder.create((SchemaTO) schemaTO, normalSchema); normalSchema = schemaDAO.save(normalSchema); created = (T) binder.getSchemaTO(normalSchema, attrUtil); } return created; } @PreAuthorize("hasRole('SCHEMA_DELETE')") public void delete(final AttributableType attrType, final SchemaType schemaType, final String schemaName) { final AttributableUtil attrUtil = AttributableUtil.getInstance(attrType); if (!doesSchemaExist(schemaType, schemaName, attrUtil)) { throw new NotFoundException(schemaType + "/" + attrType + "/" + schemaName); } switch (schemaType) { case VIRTUAL: virSchemaDAO.delete(schemaName, attrUtil); break; case DERIVED: derSchemaDAO.delete(schemaName, attrUtil); break; case NORMAL: default: schemaDAO.delete(schemaName, attrUtil); } } @PreAuthorize("isAuthenticated()") @SuppressWarnings("unchecked") public <T extends AbstractSchemaTO> List<T> list(final AttributableType attrType, final SchemaType schemaType) { final AttributableUtil attrUtil = AttributableUtil.getInstance(attrType); List<T> result; switch (schemaType) { case VIRTUAL: List<AbstractVirSchema> virSchemas = virSchemaDAO.findAll(attrUtil.virSchemaClass()); result = (List<T>) new ArrayList<VirSchemaTO>(virSchemas.size()); for (AbstractVirSchema derSchema : virSchemas) { result.add((T) binder.getVirSchemaTO(derSchema)); } break; case DERIVED: List<AbstractDerSchema> derSchemas = derSchemaDAO.findAll(attrUtil.derSchemaClass()); result = (List<T>) new ArrayList<DerSchemaTO>(derSchemas.size()); for (AbstractDerSchema derSchema : derSchemas) { result.add((T) binder.getDerSchemaTO(derSchema)); } break; case NORMAL: default: List<AbstractNormalSchema> schemas = schemaDAO.findAll(attrUtil.schemaClass()); result = (List<T>) new ArrayList<SchemaTO>(schemas.size()); for (AbstractNormalSchema schema : schemas) { result.add((T) binder.getSchemaTO(schema, attrUtil)); } } return result; } @PreAuthorize("hasRole('SCHEMA_READ')") @SuppressWarnings("unchecked") public <T extends AbstractSchemaTO> T read(final AttributableType attrType, final SchemaType schemaType, final String schemaName) { final AttributableUtil attrUtil = AttributableUtil.getInstance(attrType); T read; switch (schemaType) { case VIRTUAL: AbstractVirSchema virSchema = virSchemaDAO.find(schemaName, attrUtil.virSchemaClass()); if (virSchema == null) { throw new NotFoundException("Virtual Schema '" + schemaName + "'"); } read = (T) binder.getVirSchemaTO(virSchema); break; case DERIVED: AbstractDerSchema derSchema = derSchemaDAO.find(schemaName, attrUtil.derSchemaClass()); if (derSchema == null) { throw new NotFoundException("Derived schema '" + schemaName + "'"); } read = (T) binder.getDerSchemaTO(derSchema); break; case NORMAL: default: AbstractNormalSchema schema = schemaDAO.find(schemaName, attrUtil.schemaClass()); if (schema == null) { throw new NotFoundException("Schema '" + schemaName + "'"); } read = (T) binder.getSchemaTO(schema, attrUtil); } return read; } @PreAuthorize("hasRole('SCHEMA_UPDATE')") public <T extends AbstractSchemaTO> void update(final AttributableType attrType, final SchemaType schemaType, final T schemaTO) { final AttributableUtil attrUtil = AttributableUtil.getInstance(attrType); if (!doesSchemaExist(schemaType, schemaTO.getName(), attrUtil)) { throw new NotFoundException(schemaType + "/" + attrType + "/" + schemaTO.getName()); } switch (schemaType) { case VIRTUAL: AbstractVirSchema virSchema = virSchemaDAO.find(schemaTO.getName(), attrUtil.virSchemaClass()); if (virSchema == null) { throw new NotFoundException("Virtual Schema '" + schemaTO.getName() + "'"); } binder.update((VirSchemaTO) schemaTO, virSchema); virSchemaDAO.save(virSchema); break; case DERIVED: AbstractDerSchema derSchema = derSchemaDAO.find(schemaTO.getName(), attrUtil.derSchemaClass()); if (derSchema == null) { throw new NotFoundException("Derived schema '" + schemaTO.getName() + "'"); } binder.update((DerSchemaTO) schemaTO, derSchema); derSchemaDAO.save(derSchema); break; case NORMAL: default: AbstractNormalSchema schema = schemaDAO.find(schemaTO.getName(), attrUtil.schemaClass()); if (schema == null) { throw new NotFoundException("Schema '" + schemaTO.getName() + "'"); } binder.update((SchemaTO) schemaTO, schema, attrUtil); schemaDAO.save(schema); } } /** * {@inheritDoc} */ @Override protected SchemaTO resolveReference(final Method method, final Object... args) throws UnresolvedReferenceException { String kind = null; String name = null; if (ArrayUtils.isNotEmpty(args)) { for (int i = 0; (name == null || kind == null) && i < args.length; i++) { if (args[i] instanceof String) { if (kind == null) { kind = (String) args[i]; } else { name = (String) args[i]; } } else if (args[i] instanceof SchemaTO) { name = ((SchemaTO) args[i]).getName(); } } } if (name != null) { try { final AttributableUtil attrUtil = AttributableUtil.valueOf(kind); return binder.getSchemaTO(schemaDAO.find(name, attrUtil.schemaClass()), attrUtil); } catch (Throwable ignore) { LOG.debug("Unresolved reference", ignore); throw new UnresolvedReferenceException(ignore); } } throw new UnresolvedReferenceException(); } }