Java tutorial
/** * Copyright 2015 Palantir Technologies * * Licensed under the BSD-3 License (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://opensource.org/licenses/BSD-3-Clause * * 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 com.palantir.lock; import java.math.BigInteger; import java.util.Map; import java.util.Set; import com.google.common.collect.ForwardingObject; import com.google.common.collect.ImmutableSet; import com.google.common.collect.Iterables; import com.google.common.collect.Maps; import com.google.common.collect.Sets; import com.palantir.common.annotation.Idempotent; public abstract class ForwardingLockService extends ForwardingObject implements LockService { @Override protected abstract LockService delegate(); @Override public LockRefreshToken lockAnonymously(LockRequest request) throws InterruptedException { return delegate().lockAnonymously(request); } @Override public LockRefreshToken lockWithClient(String client, LockRequest request) throws InterruptedException { return delegate().lockWithClient(client, request); } @Override public HeldLocksToken lockAndGetHeldLocksAnonymously(LockRequest request) throws InterruptedException { return delegate().lockAndGetHeldLocksAnonymously(request); } @Override public HeldLocksToken lockAndGetHeldLocksWithClient(String client, LockRequest request) throws InterruptedException { return delegate().lockAndGetHeldLocksWithClient(client, request); } @Override public LockResponse lock(LockClient client, LockRequest request) throws InterruptedException { return delegate().lock(client, request); } @Override public boolean unlock(HeldLocksToken token) { return delegate().unlockSimple(SimpleHeldLocksToken.fromHeldLocksToken(token)); } @Override public boolean unlock(LockRefreshToken token) { return delegate().unlockSimple(SimpleHeldLocksToken.fromLockRefreshToken(token)); } @Override public boolean unlockSimple(SimpleHeldLocksToken token) { return delegate().unlockSimple(token); } @Override public boolean unlockAndFreeze(HeldLocksToken token) { return delegate().unlockAndFreeze(token); } @Override public Set<HeldLocksToken> getTokens(LockClient client) { return delegate().getTokens(client); } @Override public Set<HeldLocksToken> refreshTokens(Iterable<HeldLocksToken> tokens) { Set<LockRefreshToken> refreshTokens = ImmutableSet .copyOf(Iterables.transform(tokens, HeldLocksTokens.getRefreshTokenFun())); Set<LockRefreshToken> goodTokens = delegate().refreshLockRefreshTokens(refreshTokens); Set<HeldLocksToken> ret = Sets.newHashSetWithExpectedSize(refreshTokens.size()); Map<LockRefreshToken, HeldLocksToken> tokenMap = Maps.uniqueIndex(tokens, HeldLocksTokens.getRefreshTokenFun()); for (LockRefreshToken goodToken : goodTokens) { HeldLocksToken lock = tokenMap.get(goodToken); ret.add(goodToken.refreshTokenWithExpriationDate(lock)); } return ret; } @Override @Idempotent public Set<LockRefreshToken> refreshLockRefreshTokens(Iterable<LockRefreshToken> tokens) { return delegate().refreshLockRefreshTokens(tokens); } @Override public HeldLocksGrant refreshGrant(HeldLocksGrant grant) { return delegate().refreshGrant(grant); } @Override public HeldLocksGrant refreshGrant(BigInteger grantId) { return delegate().refreshGrant(grantId); } @Override public HeldLocksGrant convertToGrant(HeldLocksToken token) { return delegate().convertToGrant(token); } @Override public HeldLocksToken useGrant(LockClient client, HeldLocksGrant grant) { return delegate().useGrant(client, grant); } @Override public HeldLocksToken useGrant(LockClient client, BigInteger grantId) { return delegate().useGrant(client, grantId); } @Override @Deprecated public Long getMinLockedInVersionId() { return delegate().getMinLockedInVersionId(); } @Override public Long getMinLockedInVersionId(String client) { return delegate().getMinLockedInVersionId(client); } @Override public Long getMinLockedInVersionId(LockClient client) { return delegate().getMinLockedInVersionId(client); } @Override public LockServerOptions getLockServerOptions() { return delegate().getLockServerOptions(); } @Override public long currentTimeMillis() { return delegate().currentTimeMillis(); } @Override public void logCurrentState() { delegate().logCurrentState(); } }