| 1 | /* |
| 2 | * jDTAUS Banking RI DTAUS |
| 3 | * Copyright (C) 2005 Christian Schulte |
| 4 | * <cs@schulte.it> |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with this library; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | * |
| 20 | */ |
| 21 | package org.jdtaus.banking.dtaus.ri.zka; |
| 22 | |
| 23 | import org.jdtaus.core.text.Message; |
| 24 | import org.jdtaus.core.text.Messages; |
| 25 | |
| 26 | /** |
| 27 | * Thread-local collections of messages. |
| 28 | * |
| 29 | * @author <a href="mailto:cs@schulte.it">Christian Schulte</a> |
| 30 | * @version $JDTAUS: ThreadLocalMessages.java 8661 2012-09-27 11:29:58Z schulte $ |
| 31 | */ |
| 32 | public abstract class ThreadLocalMessages |
| 33 | { |
| 34 | |
| 35 | /** Maximum number of messages added to the collection. */ |
| 36 | private static final int MAXIMUM_MESSAGES = 100; |
| 37 | |
| 38 | /** Thread local collections of messages. */ |
| 39 | private static final ThreadLocal current = new ThreadLocal() |
| 40 | { |
| 41 | |
| 42 | public Object initialValue() |
| 43 | { |
| 44 | return new Messages() |
| 45 | { |
| 46 | |
| 47 | /** Number of messages added to the instance. */ |
| 48 | private int messageCount = 0; |
| 49 | |
| 50 | public void addMessage( final Message message ) |
| 51 | { |
| 52 | if ( this.messageCount + 1L <= Integer.MAX_VALUE && this.messageCount + 1 < MAXIMUM_MESSAGES ) |
| 53 | { |
| 54 | this.messageCount++; |
| 55 | super.addMessage( message ); |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | public void removeMessage( final Message message ) |
| 60 | { |
| 61 | if ( this.messageCount - 1 >= 0 ) |
| 62 | { |
| 63 | this.messageCount--; |
| 64 | super.removeMessage( message ); |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | public void clear() |
| 69 | { |
| 70 | this.messageCount = 0; |
| 71 | super.clear(); |
| 72 | } |
| 73 | |
| 74 | }; |
| 75 | } |
| 76 | |
| 77 | }; |
| 78 | |
| 79 | /** {@code ThreadLocal} {@code Boolean}. */ |
| 80 | private static final ThreadLocal errorsEnabled = new ThreadLocal() |
| 81 | { |
| 82 | |
| 83 | protected Object initialValue() |
| 84 | { |
| 85 | return Boolean.TRUE; |
| 86 | } |
| 87 | |
| 88 | }; |
| 89 | |
| 90 | /** |
| 91 | * Flag indicating that {@code CorruptedException}s are enabled. |
| 92 | * |
| 93 | * @return {@code true} if a {@code CorruptedException} must be thrown whenever a file error is detected; |
| 94 | * {@code false} to not throw any exception when detecting a file error. |
| 95 | */ |
| 96 | public static boolean isErrorsEnabled() |
| 97 | { |
| 98 | Boolean fatal = (Boolean) errorsEnabled.get(); |
| 99 | |
| 100 | if ( fatal == null ) |
| 101 | { |
| 102 | throw new IllegalStateException(); |
| 103 | } |
| 104 | |
| 105 | return fatal.booleanValue(); |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * Setter for property {@code errorsEnabled}. |
| 110 | * |
| 111 | * @param value {@code true} if a {@code CorruptedException} should be thrown whenever a file error is detected; |
| 112 | * {@code false} to not throw any exception when detecting a file error. |
| 113 | */ |
| 114 | public static void setErrorsEnabled( final boolean value ) |
| 115 | { |
| 116 | errorsEnabled.set( value ? Boolean.TRUE : Boolean.FALSE ); |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * Gets the collection of messages stored with the current thread of execution. |
| 121 | * |
| 122 | * @return collection of messages stored with the current thread of execution. |
| 123 | */ |
| 124 | public static Messages getMessages() |
| 125 | { |
| 126 | return (Messages) current.get(); |
| 127 | } |
| 128 | |
| 129 | } |