diff --git a/common/source/java/ch/systemsx/cisd/common/utilities/DateFormatThreadLocal.java b/common/source/java/ch/systemsx/cisd/common/utilities/DateFormatThreadLocal.java new file mode 100644 index 0000000000000000000000000000000000000000..acb8f874d42d385b99895eb4d85da03534003a97 --- /dev/null +++ b/common/source/java/ch/systemsx/cisd/common/utilities/DateFormatThreadLocal.java @@ -0,0 +1,48 @@ +/* + * Copyright 2008 ETH Zuerich, CISD + * + * Licensed 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 ch.systemsx.cisd.common.utilities; + +import java.text.DateFormat; +import java.text.SimpleDateFormat; + +/** + * A small <code>ThreadLocal</code> extension suitable for non-threadsafe {@link DateFormat}. + * <p> + * As <i>Javadoc</i> states, {@link DateFormat}s are inherently unsafe for multithreaded use. + * </p> + * + * @author Christian Ribeaud + */ +public final class DateFormatThreadLocal extends ThreadLocal<SimpleDateFormat> +{ + + private final String pattern; + + public DateFormatThreadLocal(final String pattern) + { + this.pattern = pattern; + } + + // + // ThreadLocal + // + + @Override + protected final SimpleDateFormat initialValue() + { + return new SimpleDateFormat(pattern); + } +} \ No newline at end of file