diff options
Diffstat (limited to 'resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock')
7 files changed, 0 insertions, 490 deletions
diff --git a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/LockHelper.java b/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/LockHelper.java deleted file mode 100644 index 034b2bc..0000000 --- a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/LockHelper.java +++ /dev/null @@ -1,35 +0,0 @@ -/*- - * ============LICENSE_START======================================================= - * openECOMP : SDN-C - * ================================================================================ - * Copyright (C) 2017 AT&T Intellectual Property. All rights - * reserved. - * ================================================================================ - * Licensed 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. - * ============LICENSE_END========================================================= - */ - -package org.openecomp.sdnc.lock.comp; - -import java.util.Collection; - -public interface LockHelper { - - void lock(String resourceName, String lockRequester, int lockTimeout /* Seconds */); - - void unlock(String resourceName, boolean force); - - void lock(Collection<String> resourceNameList, String lockRequester, int lockTimeout /* Seconds */); - - void unlock(Collection<String> resourceNameList, boolean force); -} diff --git a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/LockHelperImpl.java b/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/LockHelperImpl.java deleted file mode 100644 index 5474995..0000000 --- a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/LockHelperImpl.java +++ /dev/null @@ -1,166 +0,0 @@ -/*- - * ============LICENSE_START======================================================= - * openECOMP : SDN-C - * ================================================================================ - * Copyright (C) 2017 AT&T Intellectual Property. All rights - * reserved. - * ================================================================================ - * Licensed 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. - * ============LICENSE_END========================================================= - */ - -package org.openecomp.sdnc.lock.comp; - -import java.util.ArrayList; -import java.util.Collection; -import java.util.Collections; -import java.util.Date; -import java.util.List; - -import org.openecomp.sdnc.lock.dao.ResourceLockDao; -import org.openecomp.sdnc.lock.data.ResourceLock; - -public class LockHelperImpl implements LockHelper { - - private ResourceLockDao resourceLockDao; - private int retryCount = 10; - private int lockWait = 5; // Seconds - - @Override - public void lock(String resourceName, String lockRequester, int lockTimeout /* Seconds */) { - lock(Collections.singleton(resourceName), lockRequester, lockTimeout); - } - - @Override - public void unlock(String resourceName, boolean force) { - unlock(Collections.singleton(resourceName), force); - } - - @Override - public void lock(Collection<String> resourceNameList, String lockRequester, int lockTimeout /* Seconds */) { - for (int i = 0; true; i++) { - try { - tryLock(resourceNameList, lockRequester, lockTimeout); - return; - } catch (ResourceLockedException e) { - if (i > retryCount) - throw e; - try { - Thread.sleep(lockWait * 1000); - } catch (InterruptedException ex) { - } - } - } - } - - @Override - public void unlock(Collection<String> lockNames, boolean force) { - if (lockNames == null || lockNames.size() == 0) - return; - - resourceLockDao.lockTable(); - - try { - for (String name : lockNames) { - ResourceLock l = resourceLockDao.getByResourceName(name); - if (l != null) - if (force || l.lockCount == 1) - resourceLockDao.delete(l.id); - else - resourceLockDao.decrementLockCount(l.id); - } - } finally { - resourceLockDao.unlockTable(); - } - } - - public void tryLock(Collection<String> resourceNameList, String lockRequester, int lockTimeout /* Seconds */) { - if (resourceNameList == null || resourceNameList.size() == 0) - return; - - lockRequester = generateLockRequester(lockRequester, 100); - - resourceLockDao.lockTable(); - - try { - // First check if all requested records are available to lock - - Date now = new Date(); - - List<ResourceLock> dbLockList = new ArrayList<ResourceLock>(); - List<String> insertLockNameList = new ArrayList<String>(); - for (String name : resourceNameList) { - ResourceLock l = resourceLockDao.getByResourceName(name); - - boolean canLock = - l == null || now.getTime() > l.expirationTime.getTime() || lockRequester != null && - lockRequester.equals(l.lockHolder) || l.lockCount <= 0; - if (!canLock) - throw new ResourceLockedException(l.resourceName, l.lockHolder, lockRequester); - - if (l != null) - dbLockList.add(l); - else - insertLockNameList.add(name); - } - - // Update the lock info in DB - for (ResourceLock l : dbLockList) - resourceLockDao.update(l.id, now, new Date(now.getTime() + lockTimeout * 1000), l.lockCount + 1); - - // Insert records for those that are not yet there - for (String lockName : insertLockNameList) { - ResourceLock l = new ResourceLock(); - l.resourceName = lockName; - l.lockHolder = lockRequester; - l.lockTime = now; - l.expirationTime = new Date(now.getTime() + lockTimeout * 1000); - l.lockCount = 1; - resourceLockDao.add(l); - } - } finally { - resourceLockDao.unlockTable(); - } - } - - private static String generateLockRequester(String name, int maxLength) { - if (name == null) - name = ""; - int l1 = name.length(); - String tname = Thread.currentThread().getName(); - int l2 = tname.length(); - if (l1 + l2 + 1 > maxLength) { - int maxl1 = maxLength / 2; - if (l1 > maxl1) { - name = name.substring(0, maxl1); - l1 = maxl1; - } - int maxl2 = maxLength - l1 - 1; - if (l2 > maxl2) - tname = tname.substring(0, 6) + "..." + tname.substring(l2 - maxl2 + 9); - } - return tname + '-' + name; - } - - public void setResourceLockDao(ResourceLockDao resourceLockDao) { - this.resourceLockDao = resourceLockDao; - } - - public void setRetryCount(int retryCount) { - this.retryCount = retryCount; - } - - public void setLockWait(int lockWait /* Seconds */) { - this.lockWait = lockWait; - } -} diff --git a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/ResourceLockedException.java b/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/ResourceLockedException.java deleted file mode 100644 index ededa31..0000000 --- a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/ResourceLockedException.java +++ /dev/null @@ -1,41 +0,0 @@ -/*- - * ============LICENSE_START======================================================= - * openECOMP : SDN-C - * ================================================================================ - * Copyright (C) 2017 AT&T Intellectual Property. All rights - * reserved. - * ================================================================================ - * Licensed 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. - * ============LICENSE_END========================================================= - */ - -package org.openecomp.sdnc.lock.comp; - -public class ResourceLockedException extends RuntimeException { - - private static final long serialVersionUID = 1L; - - private String lockName, lockHolder, lockRequester; - - public ResourceLockedException(String lockName, String lockHolder, String lockRequester) { - this.lockName = lockName; - this.lockHolder = lockHolder; - this.lockRequester = lockRequester; - } - - @Override - public String getMessage() { - return "Failed to lock [" + lockName + "] for [" + lockRequester + "]. Currently locked by [" + lockHolder + - "]."; - } -} diff --git a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/SynchronizedFunction.java b/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/SynchronizedFunction.java deleted file mode 100644 index 194c7e2..0000000 --- a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/comp/SynchronizedFunction.java +++ /dev/null @@ -1,56 +0,0 @@ -/*- - * ============LICENSE_START======================================================= - * openECOMP : SDN-C - * ================================================================================ - * Copyright (C) 2017 AT&T Intellectual Property. All rights - * reserved. - * ================================================================================ - * Licensed 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. - * ============LICENSE_END========================================================= - */ - -package org.openecomp.sdnc.lock.comp; - -import java.util.Collection; -import java.util.HashSet; -import java.util.Set; - -public abstract class SynchronizedFunction { - - private Set<String> synchset; - private String lockRequester; - private int lockTimeout; // Seconds - private LockHelper lockHelper; - - protected SynchronizedFunction(LockHelper lockHelper, Collection<String> synchset, int lockTimeout) { - this.lockHelper = lockHelper; - this.synchset = new HashSet<String>(synchset); - this.lockRequester = generateLockRequester(); - this.lockTimeout = lockTimeout; - } - - protected abstract void _exec(); - - public void exec() { - lockHelper.lock(synchset, lockRequester, lockTimeout); - try { - _exec(); - } finally { - lockHelper.unlock(synchset, true); - } - } - - private static String generateLockRequester() { - return "SynchronizedFunction-" + (int) (Math.random() * 1000000); - } -} diff --git a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/dao/ResourceLockDao.java b/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/dao/ResourceLockDao.java deleted file mode 100644 index 22d13ff..0000000 --- a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/dao/ResourceLockDao.java +++ /dev/null @@ -1,43 +0,0 @@ -/*- - * ============LICENSE_START======================================================= - * openECOMP : SDN-C - * ================================================================================ - * Copyright (C) 2017 AT&T Intellectual Property. All rights - * reserved. - * ================================================================================ - * Licensed 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. - * ============LICENSE_END========================================================= - */ - -package org.openecomp.sdnc.lock.dao; - -import java.util.Date; - -import org.openecomp.sdnc.lock.data.ResourceLock; - -public interface ResourceLockDao { - - void lockTable(); - - void unlockTable(); - - void add(ResourceLock l); - - void update(long id, Date lockTime, Date expirationTime, int lockCount); - - ResourceLock getByResourceName(String resourceName); - - void delete(long id); - - void decrementLockCount(long id); -} diff --git a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/dao/ResourceLockDaoImpl.java b/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/dao/ResourceLockDaoImpl.java deleted file mode 100644 index d35353d..0000000 --- a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/dao/ResourceLockDaoImpl.java +++ /dev/null @@ -1,115 +0,0 @@ -/*- - * ============LICENSE_START======================================================= - * openECOMP : SDN-C - * ================================================================================ - * Copyright (C) 2017 AT&T Intellectual Property. All rights - * reserved. - * ================================================================================ - * Licensed 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. - * ============LICENSE_END========================================================= - */ - -package org.openecomp.sdnc.lock.dao; - -import java.sql.ResultSet; -import java.sql.SQLException; -import java.util.Date; -import java.util.List; - -import org.openecomp.sdnc.lock.data.ResourceLock; -import org.openecomp.sdnc.util.db.CachedDataSourceWrap; -import org.slf4j.Logger; -import org.slf4j.LoggerFactory; -import org.springframework.jdbc.core.JdbcTemplate; -import org.springframework.jdbc.core.RowMapper; - -public class ResourceLockDaoImpl implements ResourceLockDao { - - private static final Logger log = LoggerFactory.getLogger(ResourceLockDaoImpl.class); - - private JdbcTemplate jdbcTemplate; - private boolean testing = false; - - @Override - public void lockTable() { - if (!testing) { - jdbcTemplate.update("LOCK TABLES RESOURCE_LOCK WRITE"); - log.info("Table RESOURCE_LOCK locked."); - } - } - - @Override - public void unlockTable() { - if (!testing) { - jdbcTemplate.update("UNLOCK TABLES"); - log.info("Table RESOURCE_LOCK unlocked."); - - CachedDataSourceWrap ds = (CachedDataSourceWrap) jdbcTemplate.getDataSource(); - ds.releaseConnection(); - } - } - - @Override - public void add(ResourceLock l) { - jdbcTemplate.update( - "INSERT INTO RESOURCE_LOCK (resource_name, lock_holder, lock_count, lock_time, expiration_time)\n" + - "VALUES (?, ?, ?, ?, ?)", - new Object[] { l.resourceName, l.lockHolder, l.lockCount, l.lockTime, l.expirationTime }); - } - - @Override - public void update(long id, Date lockTime, Date expirationTime, int lockCount) { - jdbcTemplate.update( - "UPDATE RESOURCE_LOCK SET lock_time = ?, expiration_time = ?, lock_count = ? WHERE resource_lock_id = ?", - new Object[] { lockTime, expirationTime, lockCount, id }); - } - - @Override - public ResourceLock getByResourceName(String resourceName) { - List<ResourceLock> ll = jdbcTemplate.query("SELECT * FROM RESOURCE_LOCK WHERE resource_name = ?", - new Object[] { resourceName }, new RowMapper<ResourceLock>() { - - @Override - public ResourceLock mapRow(ResultSet rs, int rowNum) throws SQLException { - ResourceLock rl = new ResourceLock(); - rl.id = rs.getLong("resource_lock_id"); - rl.resourceName = rs.getString("resource_name"); - rl.lockHolder = rs.getString("lock_holder"); - rl.lockCount = rs.getInt("lock_count"); - rl.lockTime = rs.getTimestamp("lock_time"); - rl.expirationTime = rs.getTimestamp("expiration_time"); - return rl; - } - }); - return ll != null && !ll.isEmpty() ? ll.get(0) : null; - } - - @Override - public void delete(long id) { - jdbcTemplate.update("DELETE FROM RESOURCE_LOCK WHERE resource_lock_id = ?", new Object[] { id }); - } - - @Override - public void decrementLockCount(long id) { - jdbcTemplate.update("UPDATE RESOURCE_LOCK SET lock_count = lock_count - 1 WHERE resource_lock_id = ?", - new Object[] { id }); - } - - public void setJdbcTemplate(JdbcTemplate jdbcTemplate) { - this.jdbcTemplate = jdbcTemplate; - } - - public void setTesting(boolean testing) { - this.testing = testing; - } -} diff --git a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/data/ResourceLock.java b/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/data/ResourceLock.java deleted file mode 100644 index 4707583..0000000 --- a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/lock/data/ResourceLock.java +++ /dev/null @@ -1,34 +0,0 @@ -/*- - * ============LICENSE_START======================================================= - * openECOMP : SDN-C - * ================================================================================ - * Copyright (C) 2017 AT&T Intellectual Property. All rights - * reserved. - * ================================================================================ - * Licensed 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. - * ============LICENSE_END========================================================= - */ - -package org.openecomp.sdnc.lock.data; - -import java.util.Date; - -public class ResourceLock { - - public long id; - public String resourceName; - public String lockHolder; - public int lockCount; - public Date lockTime; - public Date expirationTime; -} |