zyxxoo commented on code in PR #2301: URL: https://github.com/apache/incubator-hugegraph/pull/2301#discussion_r1325528585
########## hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/meta/PdMetaDriver.java: ########## @@ -0,0 +1,250 @@ +/* + * 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.hugegraph.meta; + +import java.text.SimpleDateFormat; +import java.util.ArrayList; +import java.util.Date; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.function.Consumer; + +import org.apache.hugegraph.HugeException; +import org.apache.hugegraph.meta.lock.LockResult; +import org.apache.hugegraph.meta.lock.PdDistributedLock; +import org.apache.hugegraph.pd.client.KvClient; +import org.apache.hugegraph.pd.client.PDClient; +import org.apache.hugegraph.pd.client.PDConfig; +import org.apache.hugegraph.pd.common.PDException; +import org.apache.hugegraph.pd.grpc.kv.KResponse; +import org.apache.hugegraph.pd.grpc.kv.LockResponse; +import org.apache.hugegraph.pd.grpc.kv.ScanPrefixResponse; +import org.apache.hugegraph.pd.grpc.kv.TTLResponse; +import org.apache.hugegraph.pd.grpc.kv.WatchEvent; +import org.apache.hugegraph.pd.grpc.kv.WatchResponse; +import org.apache.hugegraph.pd.grpc.kv.WatchType; + +import com.google.common.base.Strings; + +public class PdMetaDriver implements MetaDriver { + + KvClient<WatchResponse> client = null; + PDClient pdClient = null; + private PdDistributedLock lock; + + public PdMetaDriver(String pdPeer) { + PDConfig pdConfig = PDConfig.of(pdPeer); + this.client = new KvClient<>(pdConfig); + this.pdClient = PDClient.create(pdConfig); + lock = new PdDistributedLock(this.client); + } + + public static void main(String[] args) { + PDConfig pdConfig = PDConfig.of("127.0.0.1:8686"); + KvClient<WatchResponse> client = new KvClient<>(pdConfig); + ScanPrefixResponse contents; + try { + contents = client.scanPrefix("HUGEGRAPH/METRICS"); + Map<String, String> map = contents.getKvsMap(); + for (Map.Entry<String, String> entry : map.entrySet()) { + System.out.println(entry.getKey() + ":" + entry.getValue()); + } + System.out.println(map.size()); + } catch (PDException e) { + e.printStackTrace(); + } + Date dNow = new Date(); + System.out.println(dNow); + SimpleDateFormat ft = new SimpleDateFormat("HHmmss"); + System.out.println("当前时间为: " + ft.format(dNow)); + } + + public PDClient pdClient() { + return this.pdClient; + } + + @Override + public void put(String key, String value) { + try { + this.client.put(key, value); + } catch (PDException e) { + throw new HugeException("Failed to put '%s:%s' to pd", e, key, value); + } + } + + @Override + public String get(String key) { + try { + KResponse response = this.client.get(key); + return response.getValue(); + } catch (PDException e) { + throw new HugeException("Failed to get '%s' from pd", e, key); + } + } + + @Override + public void delete(String key) { + try { + this.client.delete(key); + } catch (PDException e) { + throw new HugeException("Failed to delete '%s' from pd", e, key); + } + } + + @Override + public void deleteWithPrefix(String prefix) { + try { + this.client.deletePrefix(prefix); + } catch (PDException e) { + throw new HugeException("Failed to deleteWithPrefix '%s' from pd", e, prefix); + } + } + + @Override + public Map<String, String> scanWithPrefix(String prefix) { + try { + ScanPrefixResponse response = this.client.scanPrefix(prefix); + return response.getKvsMap(); + } catch (PDException e) { + throw new HugeException("Failed to scanWithPrefix '%s' from pd", e, prefix); + } + } + + @Override + public <T> void listen(String key, Consumer<T> consumer) { + try { + this.client.listen(key, (Consumer<WatchResponse>) consumer); + } catch (PDException e) { + throw new HugeException("Failed to listen '%s' to pd", e, key); + } + } + + @Override + public <T> void listenPrefix(String prefix, Consumer<T> consumer) { + try { + this.client.listenPrefix(prefix, (Consumer<WatchResponse>) consumer); + } catch (PDException e) { + throw new HugeException("Failed to listenPrefix '%s' to pd", e, prefix); + } + } + + @Override + public <T> List<String> extractValuesFromResponse(T response) { + List<String> values = new ArrayList<>(); + WatchResponse res = (WatchResponse) response; + for (WatchEvent event : res.getEventsList()) { + // Skip if not PUT event + if (!event.getType().equals(WatchType.Put)) { + return null; + } + String value = event.getCurrent().getValue(); + values.add(value); + } + return values; + } + + @Override + public <T> Map<String, String> extractKVFromResponse(T response) { + Map<String, String> resultMap = new HashMap<>(); + WatchResponse res = (WatchResponse) response; + for (WatchEvent event : res.getEventsList()) { + // Skip if not etcd PUT event + if (!event.getType().equals(WatchType.Put)) { + continue; + } + + String key = event.getCurrent().getKey(); + String value = event.getCurrent().getValue(); + if (Strings.isNullOrEmpty(key)) { + continue; + } + resultMap.put(key, value); + } + return resultMap; + } + + @Override + public LockResult lock(String key, long ttl) { + while (true) { Review Comment: 如果是 deprecated，就直接删除吧 ########## hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/meta/PdMetaDriver.java: ########## @@ -0,0 +1,250 @@ +/* + * 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.hugegraph.meta; + +import java.text.SimpleDateFormat; +import java.util.ArrayList; +import java.util.Date; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.function.Consumer; + +import org.apache.hugegraph.HugeException; +import org.apache.hugegraph.meta.lock.LockResult; +import org.apache.hugegraph.meta.lock.PdDistributedLock; +import org.apache.hugegraph.pd.client.KvClient; +import org.apache.hugegraph.pd.client.PDClient; +import org.apache.hugegraph.pd.client.PDConfig; +import org.apache.hugegraph.pd.common.PDException; +import org.apache.hugegraph.pd.grpc.kv.KResponse; +import org.apache.hugegraph.pd.grpc.kv.LockResponse; +import org.apache.hugegraph.pd.grpc.kv.ScanPrefixResponse; +import org.apache.hugegraph.pd.grpc.kv.TTLResponse; +import org.apache.hugegraph.pd.grpc.kv.WatchEvent; +import org.apache.hugegraph.pd.grpc.kv.WatchResponse; +import org.apache.hugegraph.pd.grpc.kv.WatchType; + +import com.google.common.base.Strings; + +public class PdMetaDriver implements MetaDriver { + + KvClient<WatchResponse> client = null; + PDClient pdClient = null; + private PdDistributedLock lock; + + public PdMetaDriver(String pdPeer) { + PDConfig pdConfig = PDConfig.of(pdPeer); + this.client = new KvClient<>(pdConfig); + this.pdClient = PDClient.create(pdConfig); + lock = new PdDistributedLock(this.client); + } + + public static void main(String[] args) { + PDConfig pdConfig = PDConfig.of("127.0.0.1:8686"); + KvClient<WatchResponse> client = new KvClient<>(pdConfig); + ScanPrefixResponse contents; + try { + contents = client.scanPrefix("HUGEGRAPH/METRICS"); + Map<String, String> map = contents.getKvsMap(); + for (Map.Entry<String, String> entry : map.entrySet()) { + System.out.println(entry.getKey() + ":" + entry.getValue()); + } + System.out.println(map.size()); + } catch (PDException e) { + e.printStackTrace(); + } + Date dNow = new Date(); + System.out.println(dNow); + SimpleDateFormat ft = new SimpleDateFormat("HHmmss"); + System.out.println("当前时间为: " + ft.format(dNow)); + } + + public PDClient pdClient() { + return this.pdClient; + } + + @Override + public void put(String key, String value) { + try { + this.client.put(key, value); + } catch (PDException e) { + throw new HugeException("Failed to put '%s:%s' to pd", e, key, value); + } + } + + @Override + public String get(String key) { + try { + KResponse response = this.client.get(key); + return response.getValue(); + } catch (PDException e) { + throw new HugeException("Failed to get '%s' from pd", e, key); + } + } + + @Override + public void delete(String key) { + try { + this.client.delete(key); + } catch (PDException e) { + throw new HugeException("Failed to delete '%s' from pd", e, key); + } + } + + @Override + public void deleteWithPrefix(String prefix) { + try { + this.client.deletePrefix(prefix); + } catch (PDException e) { + throw new HugeException("Failed to deleteWithPrefix '%s' from pd", e, prefix); + } + } + + @Override + public Map<String, String> scanWithPrefix(String prefix) { + try { + ScanPrefixResponse response = this.client.scanPrefix(prefix); + return response.getKvsMap(); + } catch (PDException e) { + throw new HugeException("Failed to scanWithPrefix '%s' from pd", e, prefix); + } + } + + @Override + public <T> void listen(String key, Consumer<T> consumer) { + try { + this.client.listen(key, (Consumer<WatchResponse>) consumer); + } catch (PDException e) { + throw new HugeException("Failed to listen '%s' to pd", e, key); + } + } + + @Override + public <T> void listenPrefix(String prefix, Consumer<T> consumer) { + try { + this.client.listenPrefix(prefix, (Consumer<WatchResponse>) consumer); + } catch (PDException e) { + throw new HugeException("Failed to listenPrefix '%s' to pd", e, prefix); + } + } + + @Override + public <T> List<String> extractValuesFromResponse(T response) { + List<String> values = new ArrayList<>(); + WatchResponse res = (WatchResponse) response; + for (WatchEvent event : res.getEventsList()) { + // Skip if not PUT event + if (!event.getType().equals(WatchType.Put)) { + return null; + } + String value = event.getCurrent().getValue(); + values.add(value); + } + return values; + } + + @Override + public <T> Map<String, String> extractKVFromResponse(T response) { + Map<String, String> resultMap = new HashMap<>(); + WatchResponse res = (WatchResponse) response; + for (WatchEvent event : res.getEventsList()) { + // Skip if not etcd PUT event + if (!event.getType().equals(WatchType.Put)) { + continue; + } + + String key = event.getCurrent().getKey(); + String value = event.getCurrent().getValue(); + if (Strings.isNullOrEmpty(key)) { + continue; + } + resultMap.put(key, value); + } + return resultMap; + } + + @Override + public LockResult lock(String key, long ttl) { + while (true) { Review Comment: 如果是 deprecated，就直接删除吧 -- This is an automated message from the Apache Git Service. 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