Author: btellier
Date: Tue Sep 22 10:32:19 2015
New Revision: 1704553
URL: http://svn.apache.org/viewvc?rev=1704553&view=rev
Log:
JAMES-511 Add unit parsing tools for CLI
Added:
james/server/trunk/container/cli/src/main/java/org/apache/james/cli/utils/
james/server/trunk/container/cli/src/main/java/org/apache/james/cli/utils/ValueWithUnit.java
james/server/trunk/container/cli/src/test/java/org/apache/james/cli/utils/
james/server/trunk/container/cli/src/test/java/org/apache/james/cli/utils/ValueWithUnitTest.java
Added:
james/server/trunk/container/cli/src/main/java/org/apache/james/cli/utils/ValueWithUnit.java
URL:
http://svn.apache.org/viewvc/james/server/trunk/container/cli/src/main/java/org/apache/james/cli/utils/ValueWithUnit.java?rev=1704553&view=auto
==============================================================================
---
james/server/trunk/container/cli/src/main/java/org/apache/james/cli/utils/ValueWithUnit.java
(added)
+++
james/server/trunk/container/cli/src/main/java/org/apache/james/cli/utils/ValueWithUnit.java
Tue Sep 22 10:32:19 2015
@@ -0,0 +1,115 @@
+/****************************************************************
+ * 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.james.cli.utils;
+
+/**
+ * This class is an helper for parsing integer input that may contain units.
+ */
+public class ValueWithUnit {
+
+ /**
+ * supported units : B ( 2^0 ), K ( 2^10 ), M ( 2^20 ), G ( 2^30 )
+ * See RFC822.SIZE
+ */
+ private enum Unit {
+ NoUnit,
+ B,
+ K,
+ M,
+ G
+ }
+
+ private static final long base = 1024;
+
+ Unit unit;
+ Long value;
+
+ private ValueWithUnit(Unit unit, Long value) {
+ this.unit = unit;
+ this.value = value;
+ }
+
+ public static ValueWithUnit parse(String providedLongWithUnitString)
throws Exception{
+ char lastChar =
providedLongWithUnitString.charAt(providedLongWithUnitString.length()-1);
+ Unit unit = getUnit(lastChar);
+ String argWithoutUnit =
removeLastCharIfNeeded(providedLongWithUnitString, unit);
+ return new ValueWithUnit(unit, Long.parseLong(argWithoutUnit));
+ }
+
+ public Unit getUnit() {
+ return unit;
+ }
+
+ public Long getValue() {
+ return value;
+ }
+
+ public long getConvertedValue() {
+ switch (unit) {
+ case G:
+ value *= base;
+ case M:
+ value *= base;
+ case K:
+ value *= base;
+ default:
+ return value;
+ }
+ }
+
+ private static String removeLastCharIfNeeded(String
providedLongWithUnitString, Unit unit) {
+ if(unit != Unit.NoUnit) {
+ return providedLongWithUnitString.substring(0,
providedLongWithUnitString.length()-1);
+ } else {
+ return providedLongWithUnitString;
+ }
+ }
+
+ private static Unit getUnit(char lastChar) throws Exception{
+ switch(lastChar) {
+ case 'K' :
+ case 'k' :
+ return Unit.K;
+ case 'M' :
+ case 'm' :
+ return Unit.M;
+ case 'G' :
+ case 'g' :
+ return Unit.G;
+ case 'b' :
+ case 'B' :
+ return Unit.B;
+ case '1' :
+ case '2' :
+ case '3' :
+ case '4' :
+ case '5' :
+ case '6' :
+ case '7' :
+ case '8' :
+ case '9' :
+ case '0' :
+ return Unit.NoUnit;
+ default:
+ throw new Exception("No unit corresponding to char : " +
lastChar);
+ }
+ }
+
+}
\ No newline at end of file
Added:
james/server/trunk/container/cli/src/test/java/org/apache/james/cli/utils/ValueWithUnitTest.java
URL:
http://svn.apache.org/viewvc/james/server/trunk/container/cli/src/test/java/org/apache/james/cli/utils/ValueWithUnitTest.java?rev=1704553&view=auto
==============================================================================
---
james/server/trunk/container/cli/src/test/java/org/apache/james/cli/utils/ValueWithUnitTest.java
(added)
+++
james/server/trunk/container/cli/src/test/java/org/apache/james/cli/utils/ValueWithUnitTest.java
Tue Sep 22 10:32:19 2015
@@ -0,0 +1,63 @@
+/****************************************************************
+ * 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.james.cli.utils;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.Test;
+
+public class ValueWithUnitTest {
+
+ @Test
+ public void testNoUnit() throws Exception {
+
assertThat(ValueWithUnit.parse("1024").getConvertedValue()).isEqualTo(1024);
+ }
+
+ @Test
+ public void testUnitB() throws Exception {
+
assertThat(ValueWithUnit.parse("1024B").getConvertedValue()).isEqualTo(1024);
+ }
+
+ @Test
+ public void testUnitK() throws Exception {
+ assertThat(ValueWithUnit.parse("5K").getConvertedValue()).isEqualTo(5
* 1024);
+ }
+
+ @Test
+ public void testUnitM() throws Exception {
+ assertThat(ValueWithUnit.parse("5M").getConvertedValue()).isEqualTo(5
* 1024 * 1024);
+ }
+
+ @Test
+ public void testUnitG() throws Exception {
+
assertThat(ValueWithUnit.parse("1G").getConvertedValue()).isEqualTo(1024 * 1024
* 1024);
+ }
+
+ @Test(expected = Exception.class)
+ public void testBadUnit() throws Exception {
+ ValueWithUnit.parse("42T");
+ }
+
+ @Test(expected = NumberFormatException.class)
+ public void testWrongNumber() throws Exception {
+ ValueWithUnit.parse("42RG");
+ }
+
+}
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