[refactor][cli][PIP-280] Create new pulsar-cli-utils module

pom.xml

@@ -2179,6 +2179,7 @@ flexible messaging model and an intuitive client API.</description>
         <module>pulsar-common</module>
         <module>pulsar-broker-common</module>
         <module>pulsar-broker</module>
+        <module>pulsar-cli-utils</module>
         <module>pulsar-client-api</module>
         <module>pulsar-client</module>
         <module>pulsar-client-shaded</module>

pulsar-cli-utils/pom.xml

@@ -0,0 +1,149 @@
+<?xml version="1.0"?>
+<!--
+
+    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.
+
+-->
+<project
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+  xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>org.apache.pulsar</groupId>
+    <artifactId>pulsar</artifactId>
+    <version>3.1.0-SNAPSHOT</version>
+    <relativePath>..</relativePath>
+  </parent>
+
+  <artifactId>pulsar-cli-utils</artifactId>
+  <name>Pulsar CLI Utils</name>
+  <description>Isolated CLI utility module</description>
+
+  <dependencies>
+    <dependency>
+      <groupId>com.beust</groupId>
+      <artifactId>jcommander</artifactId>
+      <scope>compile</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.apache.commons</groupId>
+      <artifactId>commons-lang3</artifactId>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <configuration>
+          <release>${pulsar.client.compiler.release}</release>
+        </configuration>
+      </plugin>
+
+      <plugin>
+        <groupId>org.gaul</groupId>
+        <artifactId>modernizer-maven-plugin</artifactId>
+        <configuration>
+          <failOnViolations>true</failOnViolations>
+          <javaVersion>8</javaVersion>
+        </configuration>
+        <executions>
+          <execution>
+            <id>modernizer</id>
+            <phase>verify</phase>
+            <goals>
+              <goal>modernizer</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+
+      <plugin>
+        <groupId>pl.project13.maven</groupId>
+        <artifactId>git-commit-id-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>git-info</id>
+            <goals>
+              <goal>revision</goal>
+            </goals>
+          </execution>
+        </executions>
+        <configuration>
+          <skip>false</skip>
+          <useNativeGit>true</useNativeGit>
+          <prefix>git</prefix>
+          <verbose>false</verbose>
+          <failOnNoGitDirectory>false</failOnNoGitDirectory>
+          <failOnUnableToExtractRepoInfo>false</failOnUnableToExtractRepoInfo>
+          <format>properties</format>
+          <gitDescribe>
+            <skip>true</skip>
+          </gitDescribe>
+        </configuration>
+      </plugin>
+
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>templating-maven-plugin</artifactId>
+        <version>1.0.0</version>
+        <executions>
+          <execution>
+            <id>filtering-java-templates</id>
+            <goals>
+              <goal>filter-sources</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+
+      <plugin>
+        <groupId>com.github.spotbugs</groupId>
+        <artifactId>spotbugs-maven-plugin</artifactId>
+        <version>${spotbugs-maven-plugin.version}</version>
+        <executions>
+          <execution>
+            <id>spotbugs</id>
+            <phase>verify</phase>
+            <goals>
+              <goal>check</goal>
+            </goals>
+          </execution>
+        </executions>
+        <configuration>
+          <excludeFilterFile>${basedir}/src/main/resources/findbugsExclude.xml</excludeFilterFile>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-checkstyle-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>checkstyle</id>
+            <phase>verify</phase>
+            <goals>
+              <goal>check</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>

pulsar-cli-utils/src/main/java/org/apache/pulsar/cli/ValueValidationUtil.java

@@ -0,0 +1,57 @@
+/*
+ * 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.pulsar.cli;
+
+import com.beust.jcommander.ParameterException;
+import lombok.experimental.UtilityClass;
+import org.apache.commons.lang3.StringUtils;
+
+@UtilityClass
+public class ValueValidationUtil {
+
+    public static void maxValueCheck(String paramName, long value, long maxValue) {
+        if (value > maxValue) {
+            throw new ParameterException(paramName + " cannot be bigger than <" + maxValue + ">!");
+        }
+    }
+
+    public static void positiveCheck(String paramName, long value) {
+        if (value <= 0) {
+            throw new ParameterException(paramName + " cannot be less than or equal to <0>!");
+        }
+    }
+
+    public static void positiveCheck(String paramName, int value) {
+        if (value <= 0) {
+            throw new ParameterException(paramName + " cannot be less than or equal to <0>!");
+        }
+    }
+
+    public static void emptyCheck(String paramName, String value) {
+        if (StringUtils.isEmpty(value)) {
+            throw new ParameterException("The value of " + paramName + " can't be empty");
+        }
+    }
+
+    public static void minValueCheck(String name, Long value, long min) {
+        if (value < min) {
+            throw new ParameterException(name + " cannot be less than <" + min + ">!");
+        }
+    }
+}

pulsar-cli-utils/src/main/java/org/apache/pulsar/cli/converters/ByteUnitIntegerConverter.java

@@ -0,0 +1,41 @@
+/*
+ * 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.pulsar.cli.converters;
+
+import static org.apache.pulsar.cli.ValueValidationUtil.emptyCheck;
+import static org.apache.pulsar.cli.converters.ByteUnitUtil.validateSizeString;
+import com.beust.jcommander.converters.BaseConverter;
+
+public class ByteUnitIntegerConverter extends BaseConverter<Integer> {
+
+    public ByteUnitIntegerConverter(String optionName) {
+        super(optionName);
+    }
+
+    @Override
+    public Integer convert(String argStr) {
+        return parseBytes(argStr).intValue();
+    }
+
+    Long parseBytes(String argStr) {
+        emptyCheck(getOptionName(), argStr);
+        long valueInBytes = validateSizeString(argStr);
+        return valueInBytes;
+    }
+}

pulsar-cli-utils/src/main/java/org/apache/pulsar/cli/converters/ByteUnitToLongConverter.java

@@ -0,0 +1,39 @@
+/*
+ * 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.pulsar.cli.converters;
+
+import static org.apache.pulsar.cli.ValueValidationUtil.emptyCheck;
+import com.beust.jcommander.converters.BaseConverter;
+
+public class ByteUnitToLongConverter extends BaseConverter<Long> {
+
+    public ByteUnitToLongConverter(String optionName) {
+        super(optionName);
+    }
+
+    @Override
+    public Long convert(String argStr) {
+        return parseBytes(argStr);
+    }
+
+    Long parseBytes(String argStr) {
+        emptyCheck(getOptionName(), argStr);
+        return ByteUnitUtil.validateSizeString(argStr);
+    }
+}

pulsar-cli-utils/src/main/java/org/apache/pulsar/cli/converters/ByteUnitUtil.java

@@ -0,0 +1,71 @@
+/*
+ * 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.pulsar.cli.converters;
+
+import com.beust.jcommander.ParameterException;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+import lombok.experimental.UtilityClass;
+
+@UtilityClass
+class ByteUnitUtil {
+
+    private static Set<Character> sizeUnit = Collections.unmodifiableSet(
+            new HashSet<>(Arrays.asList('k', 'K', 'm', 'M', 'g', 'G', 't', 'T')));
+
+    static long validateSizeString(String byteStr) {
+        if (byteStr.isEmpty()) {
+            throw new IllegalArgumentException("byte string cannot be empty");
+        }
+
+        char last = byteStr.charAt(byteStr.length() - 1);
+        String subStr = byteStr.substring(0, byteStr.length() - 1);
+        long size;
+        try {
+            size = sizeUnit.contains(last)
+                    ? Long.parseLong(subStr)
+                    : Long.parseLong(byteStr);
+        } catch (IllegalArgumentException e) {
+            throw new ParameterException(String.format("Invalid size '%s'. Valid formats are: %s",
+                    byteStr, "(4096, 100K, 10M, 16G, 2T)"));
+        }
+        switch (last) {
+            case 'k':
+            case 'K':
+                return size * 1024;
+
+            case 'm':
+            case 'M':
+                return size * 1024 * 1024;
+
+            case 'g':
+            case 'G':
+                return size * 1024 * 1024 * 1024;
+
+            case 't':
+            case 'T':
+                return size * 1024 * 1024 * 1024 * 1024;
+
+            default:
+                return size;
+        }
+    }
+}