X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=org.argeo.server.core%2Fsrc%2Fmain%2Fjava%2Forg%2Fargeo%2Fserver%2Fdao%2FAbstractTabularDaoSupport.java;fp=org.argeo.server.core%2Fsrc%2Fmain%2Fjava%2Forg%2Fargeo%2Fserver%2Fdao%2FAbstractTabularDaoSupport.java;h=1ca5a100c64e6daab38a117a174c0e925683a51e;hb=1df1bf64759d35d3d72b9d96b26b71118fdbe031;hp=0000000000000000000000000000000000000000;hpb=3a3d316af102ba410d1d9e6de349d0c8f7ac044f;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.server.core/src/main/java/org/argeo/server/dao/AbstractTabularDaoSupport.java b/org.argeo.server.core/src/main/java/org/argeo/server/dao/AbstractTabularDaoSupport.java
new file mode 100644
index 000000000..1ca5a100c
--- /dev/null
+++ b/org.argeo.server.core/src/main/java/org/argeo/server/dao/AbstractTabularDaoSupport.java
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * 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 org.argeo.server.dao;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.ArgeoException;
+
+public abstract class AbstractTabularDaoSupport extends
+		AbstractMemoryDaoSupport {
+	private final static Log log = LogFactory
+			.getLog(AbstractTabularDaoSupport.class);
+	
+	private Map<String, List<Object>> tabularView = new HashMap<String, List<Object>>();
+
+	@Override
+	protected Object findInternalRef(Reference reference) {
+		TabularInternalReference tabReference = (TabularInternalReference) reference;
+		return getFromTabularView(tabReference.getTargetTableName(),
+				tabReference.getTargetRow());
+	}
+
+	protected Object getFromTabularView(String tableName, Integer row) {
+		return tabularView.get(tableName).get(row - 2);
+	}
+
+	protected void registerInTabularView(String tableName, Object object) {
+		if (!tabularView.containsKey(tableName))
+			tabularView.put(tableName, new ArrayList<Object>());
+		tabularView.get(tableName).add(object);
+	}
+
+	protected Class<?> findClassToInstantiate(String tableName) {
+		// TODO: ability to map sheet names and class names
+		String className = tableName;
+		Class<?> clss = null;
+		try {
+			clss = getClassLoader().loadClass(className);
+			return clss;
+		} catch (ClassNotFoundException e) {
+			// silent
+		}
+
+		scannedPkgs: for (String pkg : getScannedPackages()) {
+			try {
+				clss = getClassLoader().loadClass(pkg.trim() + "." + className);
+				break scannedPkgs;
+			} catch (ClassNotFoundException e) {
+				// silent
+				if (log.isTraceEnabled())
+					log.trace(e.getMessage());
+			}
+		}
+
+		if (clss == null)
+			throw new ArgeoException("Cannot find a class for table "
+					+ tableName);
+
+		return clss;
+	}
+
+	protected static class TabularInternalReference extends Reference {
+		private String targetTableName;
+		private Integer targetRow;
+
+		public TabularInternalReference(Object object, String property,
+				String targetSheet, Integer targetRow) {
+			super(object, property, null);
+			this.targetTableName = targetSheet;
+			this.targetRow = targetRow;
+		}
+
+		public String getTargetTableName() {
+			return targetTableName;
+		}
+
+		public Integer getTargetRow() {
+			return targetRow;
+		}
+
+	}
+}