Github user mushketyk commented on a diff in the pull request:
https://github.com/apache/flink/pull/2487#discussion_r78446343
--- Diff:
flink-contrib/flink-siddhi/src/main/java/org/apache/flink/contrib/siddhi/SiddhiCEP.java
---
@@ -0,0 +1,116 @@
+/*
+ * 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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.flink.contrib.siddhi;
+
+import org.apache.flink.annotation.PublicEvolving;
+import org.apache.flink.contrib.siddhi.exception.DuplicatedStreamException;
+import org.apache.flink.contrib.siddhi.exception.UndefinedStreamException;
+import org.apache.flink.contrib.siddhi.schema.SiddhiStreamSchema;
+import org.apache.flink.streaming.api.datastream.DataStream;
+import
org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Siddhi CEP Execution Environment
+ */
+@PublicEvolving
+public class SiddhiCEP {
+ private final StreamExecutionEnvironment executionEnvironment;
+ private final Map<String, DataStream<?>> dataStreams = new HashMap<>();
+ private final Map<String, SiddhiStreamSchema<?>> dataStreamSchemas =
new HashMap<>();
+ private final Map<String, Class<?>> extensions = new HashMap<>();
+
+ public Map<String, DataStream<?>> getDataStreams() {
+ return this.dataStreams;
+ }
+
+ public Map<String, SiddhiStreamSchema<?>> getDataStreamSchemas() {
+ return this.dataStreamSchemas;
+ }
+
+ public boolean isStreamDefined(String streamId) {
+ return dataStreams.containsKey(streamId);
+ }
+
+ public Map<String, Class<?>> getExtensions() {
+ return this.extensions;
+ }
+
+ public void checkStreamDefined(String streamId) throws
UndefinedStreamException {
+ if (!isStreamDefined(streamId)) {
+ throw new UndefinedStreamException("Stream (streamId: "
+ streamId + ") not defined");
+ }
+ }
+
+ public SiddhiCEP(StreamExecutionEnvironment streamExecutionEnvironment)
{
--- End diff --
Could you put constructor after the fields definitions?
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