Repository: commons-testing
Updated Branches:
  refs/heads/master dda9233ce -> 46ef8ad39


Format.

Project: http://git-wip-us.apache.org/repos/asf/commons-testing/repo
Commit: http://git-wip-us.apache.org/repos/asf/commons-testing/commit/46ef8ad3
Tree: http://git-wip-us.apache.org/repos/asf/commons-testing/tree/46ef8ad3
Diff: http://git-wip-us.apache.org/repos/asf/commons-testing/diff/46ef8ad3

Branch: refs/heads/master
Commit: 46ef8ad39bbe4ef7c8ec352db7f5c2e096c4b01d
Parents: dda9233
Author: Gary Gregory <garydgreg...@gmail.com>
Authored: Fri Mar 2 09:14:09 2018 -0700
Committer: Gary Gregory <garydgreg...@gmail.com>
Committed: Fri Mar 2 09:14:09 2018 -0700

----------------------------------------------------------------------
 .../testing/net/AvailableServerPortFinder.java  | 317 ++++++++++---------
 1 file changed, 161 insertions(+), 156 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/commons-testing/blob/46ef8ad3/commons-testing-generic/src/main/java/org/apache/commons/testing/net/AvailableServerPortFinder.java
----------------------------------------------------------------------
diff --git 
a/commons-testing-generic/src/main/java/org/apache/commons/testing/net/AvailableServerPortFinder.java
 
b/commons-testing-generic/src/main/java/org/apache/commons/testing/net/AvailableServerPortFinder.java
index 656a97a..4aff121 100644
--- 
a/commons-testing-generic/src/main/java/org/apache/commons/testing/net/AvailableServerPortFinder.java
+++ 
b/commons-testing-generic/src/main/java/org/apache/commons/testing/net/AvailableServerPortFinder.java
@@ -1,156 +1,161 @@
-/*
- * 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.commons.testing.net;
-
-import java.io.IOException;
-import java.net.DatagramSocket;
-import java.net.ServerSocket;
-import java.util.NoSuchElementException;
-import java.util.concurrent.atomic.AtomicInteger;
-
-import org.apache.commons.testing.Closer;
-
-/**
- * Finds currently available server ports.
- */
-public final class AvailableServerPortFinder {
-
-    /**
-     * The minimum server currentMinPort number for IPv4.
-     * Set at 1100 to avoid returning privileged currentMinPort numbers.
-     */
-    public static final int MIN_PORT_NUMBER = 1100;
-
-    /**
-     * Incremented to the next lowest available port when getNextAvailable() 
is called.
-     */
-    private static AtomicInteger currentMinPort = new 
AtomicInteger(MIN_PORT_NUMBER);
-
-    /**
-     * We'll hold open the lowest port in this process
-     * so parallel processes won't use the same block
-     * of ports. They'll go up to the next block.
-     */
-    private static final ServerSocket LOCK;
-
-    /**
-     * The maximum server currentMinPort number for IPv4.
-     */
-    public static final int MAX_PORT_NUMBER = 65535;
-
-    static {
-        int port = MIN_PORT_NUMBER;
-        ServerSocket ss = null;
-
-        while (ss == null) {
-            try {
-                ss = new ServerSocket(port);
-            } catch (final Exception e) {
-                ss = null;
-                port += 200;
-            }
-        }
-        LOCK = ss;
-        Runtime.getRuntime().addShutdownHook(new Thread() {
-            @Override
-            public void run() {
-                close();
-            }
-        });
-        currentMinPort.set(port + 1);
-    }
-
-    /**
-     * Checks to see if a specific port is available.
-     *
-     * @param port the port number to check for availability
-     * @return {@code true} if the port is available, or {@code false} if not
-     * @throws IllegalArgumentException is thrown if the port number is out of 
range
-     */
-    public static synchronized boolean available(final int port) throws 
IllegalArgumentException {
-        if (port < currentMinPort.get() || port > MAX_PORT_NUMBER) {
-            throw new IllegalArgumentException("Invalid start currentMinPort: 
" + port);
-        }
-
-        ServerSocket ss = null;
-        DatagramSocket ds = null;
-        try {
-            ss = new ServerSocket(port);
-            ss.setReuseAddress(true);
-            ds = new DatagramSocket(port);
-            ds.setReuseAddress(true);
-            return true;
-        } catch (final IOException e) {
-            // Do nothing
-        } finally {
-            Closer.closeSilently(ds);
-            Closer.closeSilently(ss);
-        }
-
-        return false;
-    }
-
-    public static void close() {
-        Closer.closeSilently(LOCK);
-    }
-
-    /**
-     * Gets the next available port starting at the lowest number. This is the 
preferred
-     * method to use. The port return is immediately marked in use and doesn't 
rely on the caller actually opening
-     * the port.
-     *
-     * @throws IllegalArgumentException is thrown if the port number is out of 
range
-     * @throws NoSuchElementException if there are no ports available
-     * @return the available port
-     */
-    public static synchronized int getNextAvailable() {
-        final int next = getNextAvailable(currentMinPort.get());
-        currentMinPort.set(next + 1);
-        return next;
-    }
-
-    /**
-     * Gets the next available port starting at a given from port.
-     *
-     * @param fromPort the from port to scan for availability
-     * @throws IllegalArgumentException is thrown if the port number is out of 
range
-     * @throws NoSuchElementException if there are no ports available
-     * @return the available port
-     */
-    public static synchronized int getNextAvailable(final int fromPort) {
-        if (fromPort < currentMinPort.get() || fromPort > MAX_PORT_NUMBER) {
-            throw new IllegalArgumentException("From port number not in valid 
range: " + fromPort);
-        }
-
-        for (int i = fromPort; i <= MAX_PORT_NUMBER; i++) {
-            if (available(i)) {
-                return i;
-            }
-        }
-
-        throw new NoSuchElementException("Could not find an available port 
above " + fromPort);
-    }
-
-    /**
-     * Creates a new instance.
-     */
-    private AvailableServerPortFinder() {
-        // Do nothing
-    }
-
-}
+/*
+ * 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.commons.testing.net;
+
+import java.io.IOException;
+import java.net.DatagramSocket;
+import java.net.ServerSocket;
+import java.util.NoSuchElementException;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.apache.commons.testing.Closer;
+
+/**
+ * Finds currently available server ports.
+ */
+public final class AvailableServerPortFinder {
+
+    /**
+     * The minimum server currentMinPort number for IPv4. Set at 1100 to avoid 
returning privileged currentMinPort
+     * numbers.
+     */
+    public static final int MIN_PORT_NUMBER = 1100;
+
+    /**
+     * Incremented to the next lowest available port when getNextAvailable() 
is called.
+     */
+    private static AtomicInteger currentMinPort = new 
AtomicInteger(MIN_PORT_NUMBER);
+
+    /**
+     * We'll hold open the lowest port in this process so parallel processes 
won't use the same block of ports. They'll
+     * go up to the next block.
+     */
+    private static final ServerSocket LOCK;
+
+    /**
+     * The maximum server currentMinPort number for IPv4.
+     */
+    public static final int MAX_PORT_NUMBER = 65535;
+
+    static {
+        int port = MIN_PORT_NUMBER;
+        ServerSocket ss = null;
+
+        while (ss == null) {
+            try {
+                ss = new ServerSocket(port);
+            } catch (final Exception e) {
+                ss = null;
+                port += 200;
+            }
+        }
+        LOCK = ss;
+        Runtime.getRuntime().addShutdownHook(new Thread() {
+            @Override
+            public void run() {
+                close();
+            }
+        });
+        currentMinPort.set(port + 1);
+    }
+
+    /**
+     * Checks to see if a specific port is available.
+     *
+     * @param port
+     *            the port number to check for availability
+     * @return {@code true} if the port is available, or {@code false} if not
+     * @throws IllegalArgumentException
+     *             is thrown if the port number is out of range
+     */
+    public static synchronized boolean available(final int port) throws 
IllegalArgumentException {
+        if (port < currentMinPort.get() || port > MAX_PORT_NUMBER) {
+            throw new IllegalArgumentException("Invalid start currentMinPort: 
" + port);
+        }
+
+        ServerSocket ss = null;
+        DatagramSocket ds = null;
+        try {
+            ss = new ServerSocket(port);
+            ss.setReuseAddress(true);
+            ds = new DatagramSocket(port);
+            ds.setReuseAddress(true);
+            return true;
+        } catch (final IOException e) {
+            // Do nothing
+        } finally {
+            Closer.closeSilently(ds);
+            Closer.closeSilently(ss);
+        }
+
+        return false;
+    }
+
+    public static void close() {
+        Closer.closeSilently(LOCK);
+    }
+
+    /**
+     * Gets the next available port starting at the lowest number. This is the 
preferred method to use. The port return
+     * is immediately marked in use and doesn't rely on the caller actually 
opening the port.
+     *
+     * @throws IllegalArgumentException
+     *             is thrown if the port number is out of range
+     * @throws NoSuchElementException
+     *             if there are no ports available
+     * @return the available port
+     */
+    public static synchronized int getNextAvailable() {
+        final int next = getNextAvailable(currentMinPort.get());
+        currentMinPort.set(next + 1);
+        return next;
+    }
+
+    /**
+     * Gets the next available port starting at a given from port.
+     *
+     * @param fromPort
+     *            the from port to scan for availability
+     * @throws IllegalArgumentException
+     *             is thrown if the port number is out of range
+     * @throws NoSuchElementException
+     *             if there are no ports available
+     * @return the available port
+     */
+    public static synchronized int getNextAvailable(final int fromPort) {
+        if (fromPort < currentMinPort.get() || fromPort > MAX_PORT_NUMBER) {
+            throw new IllegalArgumentException("From port number not in valid 
range: " + fromPort);
+        }
+
+        for (int i = fromPort; i <= MAX_PORT_NUMBER; i++) {
+            if (available(i)) {
+                return i;
+            }
+        }
+
+        throw new NoSuchElementException("Could not find an available port 
above " + fromPort);
+    }
+
+    /**
+     * Creates a new instance.
+     */
+    private AvailableServerPortFinder() {
+        // Do nothing
+    }
+
+}

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