[GitHub] [incubator-streampark] RocMarshal commented on a diff in pull request #2317: [Issue-2299] Support the yarn queue label quick-setting for yarn application mode.

["RocMarshal (via GitHub)" <gi...@apache.org>]

RocMarshal commented on code in PR #2317:
URL: https://github.com/apache/incubator-streampark/pull/2317#discussion_r1106656182


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streampark-console/streampark-console-service/src/main/java/org/apache/streampark/console/core/utils/YarnQueueLabelExpression.java:
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@@ -0,0 +1,135 @@
+/*
+ * 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.streampark.console.core.utils;
+
+import org.apache.streampark.common.conf.ConfigConst;
+import org.apache.streampark.common.enums.ExecutionMode;
+
+import org.apache.commons.lang3.StringUtils;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import java.util.Map;
+import java.util.Optional;
+import java.util.regex.Pattern;
+
+/** Util class for parsing and checking Yarn queue & Label */
+public class YarnQueueLabelExpression {
+
+  public static final String AT = "@";
+
+  public static final String REGEX = "[a-zA-Z0-9_\\-]+";
+
+  public static final String ERR_HINTS = "Yarn queue label format is invalid.";
+
+  public static final Pattern QUEUE_LABEL_PATTERN =
+      Pattern.compile(String.format("^(%s)(.%s)*(%s(%s)(,%s)*)?$", REGEX, REGEX, AT, REGEX, REGEX));
+
+  public static final String QUEUE_LABEL_FORMAT = "%s" + AT + "%s";
+
+  private final String queue;
+  private @Nullable final String labelExpression;
+
+  private YarnQueueLabelExpression(String queue, String labelExpression) {
+    this.labelExpression = StringUtils.isEmpty(labelExpression) ? null : labelExpression;
+    this.queue = queue;
+  }
+
+  public Optional<String> getLabelExpression() {
+    return Optional.ofNullable(labelExpression);
+  }
+
+  public @Nonnull String getQueue() {
+    return queue;
+  }
+
+  @Override
+  public String toString() {
+    return StringUtils.isEmpty(labelExpression)
+        ? queue
+        : String.format(QUEUE_LABEL_FORMAT, queue, labelExpression);
+  }
+
+  private static boolean isValid(String queueLabel, boolean ignoreEmpty) {
+    if (StringUtils.isEmpty(queueLabel)) {
+      return ignoreEmpty;
+    }
+    return QUEUE_LABEL_PATTERN.matcher(queueLabel).matches();
+  }
+
+  // Visible for test.
+  public static boolean isValid(String queueLabel) {
+    return isValid(queueLabel, false);
+  }
+
+  /**
+   * Only check the validation of queue-labelExpression when using yarn application or yarn-session
+   * mode.
+   *
+   * @param executionMode execution mode.
+   * @param queueLabel queueLabel expression.
+   */
+  public static void checkQueueLabelIfNeed(int executionMode, String queueLabel) {
+    if ((ExecutionMode.YARN_SESSION == ExecutionMode.of(executionMode)
+            || ExecutionMode.YARN_APPLICATION == ExecutionMode.of(executionMode))
+        && !YarnQueueLabelExpression.isValid(queueLabel, true)) {
+      throw new IllegalArgumentException(ERR_HINTS);
+    }
+  }
+
+  // Visible for test.
+  public static YarnQueueLabelExpression of(@Nonnull String queueLabelExpr) {
+    if (isValid(queueLabelExpr, false)) {
+      String[] strs = queueLabelExpr.split(AT);
+      if (strs.length == 2) {
+        return new YarnQueueLabelExpression(strs[0], strs[1]);
+      }
+      return new YarnQueueLabelExpression(strs[0], null);
+    }
+    throw new IllegalArgumentException(ERR_HINTS);
+  }
+
+  public static YarnQueueLabelExpression of(
+      @Nonnull String queue, @Nullable String labelExpression) {
+    YarnQueueLabelExpression queueLabelExpression =
+        new YarnQueueLabelExpression(queue, labelExpression);
+    if (isValid(queueLabelExpression.toString(), false)) {
+      return queueLabelExpression;
+    }
+    throw new IllegalArgumentException(ERR_HINTS);
+  }
+
+  /**
+   * Add the queue and label expression into the map as the specified configuration items. For
+   * {@link ConfigConst#KEY_YARN_APP_QUEUE} & {@link ConfigConst#KEY_YARN_APP_NODE_LABEL()}.
+   *
+   * @param queueLabelExp queue and label expression
+   * @param map the target properties.
+   */
+  public static <V> void addQueueLabelExprInto(String queueLabelExp, @Nonnull Map<String, V> map) {

Review Comment:
   If the label or queue exists, the corresponding value would be put.



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