diff options
Diffstat (limited to 'qpid/java/common/src/main/java/org/apache/qpid/transport/util')
4 files changed, 354 insertions, 0 deletions
diff --git a/qpid/java/common/src/main/java/org/apache/qpid/transport/util/Functions.java b/qpid/java/common/src/main/java/org/apache/qpid/transport/util/Functions.java new file mode 100644 index 0000000000..5761228642 --- /dev/null +++ b/qpid/java/common/src/main/java/org/apache/qpid/transport/util/Functions.java @@ -0,0 +1,102 @@ +/* + * + * 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.qpid.transport.util; + +import java.nio.ByteBuffer; + +import static java.lang.Math.*; + + +/** + * Functions + * + * @author Rafael H. Schloming + */ + +public class Functions +{ + + public static final int mod(int n, int m) + { + int r = n % m; + return r < 0 ? m + r : r; + } + + public static final byte lsb(int i) + { + return (byte) (0xFF & i); + } + + public static final byte lsb(long l) + { + return (byte) (0xFF & l); + } + + public static final String str(ByteBuffer buf) + { + return str(buf, buf.remaining()); + } + + public static final String str(ByteBuffer buf, int limit) + { + return str(buf, limit,buf.position()); + } + + public static final String str(ByteBuffer buf, int limit,int start) + { + StringBuilder str = new StringBuilder(); + str.append('"'); + + for (int i = start; i < min(buf.limit(), limit); i++) + { + byte c = buf.get(i); + + if (c > 31 && c < 127 && c != '\\') + { + str.append((char)c); + } + else + { + str.append(String.format("\\x%02x", c)); + } + } + + str.append('"'); + + if (limit < buf.remaining()) + { + str.append("..."); + } + + return str.toString(); + } + + public static final String str(byte[] bytes) + { + return str(ByteBuffer.wrap(bytes)); + } + + public static final String str(byte[] bytes, int limit) + { + return str(ByteBuffer.wrap(bytes), limit); + } + +} diff --git a/qpid/java/common/src/main/java/org/apache/qpid/transport/util/Logger.java b/qpid/java/common/src/main/java/org/apache/qpid/transport/util/Logger.java new file mode 100644 index 0000000000..8c4818df92 --- /dev/null +++ b/qpid/java/common/src/main/java/org/apache/qpid/transport/util/Logger.java @@ -0,0 +1,130 @@ +/* + * + * 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.qpid.transport.util; + +import org.slf4j.LoggerFactory; + +/** + * Logger + * + */ + +public final class Logger +{ + + public static final Logger get(Class<?> klass) + { + return new Logger(LoggerFactory.getLogger(klass)); + } + + private final org.slf4j.Logger log; + + private Logger(org.slf4j.Logger log) + { + this.log = log; + } + + public boolean isDebugEnabled() + { + return log.isDebugEnabled(); + } + + public void debug(String message, Object ... args) + { + if (log.isDebugEnabled()) + { + log.debug(String.format(message, args)); + } + } + + public void debug(Throwable t, String message, Object ... args) + { + if (log.isDebugEnabled()) + { + log.debug(String.format(message, args), t); + } + } + + public void error(String message, Object ... args) + { + if (log.isErrorEnabled()) + { + log.error(String.format(message, args)); + } + } + + public void error(Throwable t, String message, Object ... args) + { + if (log.isErrorEnabled()) + { + log.error(String.format(message, args), t); + } + } + + public void warn(String message, Object ... args) + { + if (log.isWarnEnabled()) + { + log.warn(String.format(message, args)); + } + } + + public void warn(Throwable t, String message, Object ... args) + { + if (log.isWarnEnabled()) + { + log.warn(String.format(message, args), t); + } + } + + public void info(String message, Object ... args) + { + if (log.isInfoEnabled()) + { + log.info(String.format(message, args)); + } + } + + public void info(Throwable t, String message, Object ... args) + { + if (log.isInfoEnabled()) + { + log.info(String.format(message, args), t); + } + } + + public void trace(String message, Object ... args) + { + if (log.isTraceEnabled()) + { + log.trace(String.format(message, args)); + } + } + + public void trace(Throwable t, String message, Object ... args) + { + if (log.isTraceEnabled()) + { + log.trace(String.format(message, args), t); + } + } + +} diff --git a/qpid/java/common/src/main/java/org/apache/qpid/transport/util/SliceIterator.java b/qpid/java/common/src/main/java/org/apache/qpid/transport/util/SliceIterator.java new file mode 100644 index 0000000000..3db29847b2 --- /dev/null +++ b/qpid/java/common/src/main/java/org/apache/qpid/transport/util/SliceIterator.java @@ -0,0 +1,59 @@ +/* + * + * 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.qpid.transport.util; + +import java.nio.ByteBuffer; + +import java.util.Iterator; + + +/** + * SliceIterator + * + * @author Rafael H. Schloming + */ + +public class SliceIterator implements Iterator<ByteBuffer> +{ + + final private Iterator<ByteBuffer> iterator; + + public SliceIterator(Iterator<ByteBuffer> iterator) + { + this.iterator = iterator; + } + + public boolean hasNext() + { + return iterator.hasNext(); + } + + public ByteBuffer next() + { + return iterator.next().slice(); + } + + public void remove() + { + throw new UnsupportedOperationException(); + } + +} diff --git a/qpid/java/common/src/main/java/org/apache/qpid/transport/util/Waiter.java b/qpid/java/common/src/main/java/org/apache/qpid/transport/util/Waiter.java new file mode 100644 index 0000000000..e034d779ca --- /dev/null +++ b/qpid/java/common/src/main/java/org/apache/qpid/transport/util/Waiter.java @@ -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.qpid.transport.util; + + +/** + * Waiter + * + */ + +public final class Waiter +{ + + private final Object lock; + private final long timeout; + private final long start; + private long elapsed; + + public Waiter(Object lock, long timeout) + { + this.lock = lock; + this.timeout = timeout; + this.start = System.currentTimeMillis(); + this.elapsed = 0; + } + + public boolean hasTime() + { + return elapsed < timeout; + } + + public void await() + { + try + { + lock.wait(timeout - elapsed); + } + catch (InterruptedException e) + { + // pass + } + elapsed = System.currentTimeMillis() - start; + } + +} |