[sling-org-apache-sling-installer-factory-configuration] 14/40: SLING-2252 : If a config is removed and a different config is to be installed perform an update

[ro...@apache.org]

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rombert pushed a commit to annotated tag org.apache.sling.installer.factory.configuration-1.0.10
in repository https://gitbox.apache.org/repos/asf/sling-org-apache-sling-installer-factory-configuration.git

commit 537f026d2e5c204b2f40c68ee7d8ac4a057f1d6b
Author: Carsten Ziegeler <cz...@apache.org>
AuthorDate: Thu Oct 20 09:35:14 2011 +0000

    SLING-2252 : If a config is removed and a different config is to be installed perform an update
    
    git-svn-id: https://svn.apache.org/repos/asf/sling/trunk/installer/factories/configuration@1186689 13f79535-47bb-0310-9956-ffa450edef68
---
 .../configuration/impl/ChangeStateTask.java        | 51 ++++++++++++++++++++++
 .../configuration/impl/ConfigTaskCreator.java      | 10 ++++-
 2 files changed, 60 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/apache/sling/installer/factories/configuration/impl/ChangeStateTask.java b/src/main/java/org/apache/sling/installer/factories/configuration/impl/ChangeStateTask.java
new file mode 100644
index 0000000..d7ba948
--- /dev/null
+++ b/src/main/java/org/apache/sling/installer/factories/configuration/impl/ChangeStateTask.java
@@ -0,0 +1,51 @@
+/*
+ * 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.sling.installer.factories.configuration.impl;
+
+import org.apache.sling.installer.api.tasks.InstallationContext;
+import org.apache.sling.installer.api.tasks.ResourceState;
+import org.apache.sling.installer.api.tasks.TaskResourceGroup;
+
+/**
+ * Simple general task, setting the state of a registered resource.
+ */
+public class ChangeStateTask extends AbstractConfigTask {
+
+    private static final String ORDER = "00-";
+
+    private final ResourceState state;
+
+    public ChangeStateTask(final TaskResourceGroup r,
+                           final ResourceState s) {
+        super(r, null);
+        this.state = s;
+    }
+
+    /**
+     * @see org.apache.sling.installer.api.tasks.InstallTask#execute(org.apache.sling.installer.api.tasks.InstallationContext)
+     */
+    public void execute(final InstallationContext ctx) {
+        this.setFinishedState(this.state);
+    }
+
+    @Override
+    public String getSortKey() {
+        return ORDER + getResource().getEntityId();
+    }
+}
diff --git a/src/main/java/org/apache/sling/installer/factories/configuration/impl/ConfigTaskCreator.java b/src/main/java/org/apache/sling/installer/factories/configuration/impl/ConfigTaskCreator.java
index 8554f80..b8f8ea7 100644
--- a/src/main/java/org/apache/sling/installer/factories/configuration/impl/ConfigTaskCreator.java
+++ b/src/main/java/org/apache/sling/installer/factories/configuration/impl/ConfigTaskCreator.java
@@ -69,7 +69,15 @@ public class ConfigTaskCreator
 
         final InstallTask result;
 		if (toActivate.getState() == ResourceState.UNINSTALL) {
-		    result = new ConfigRemoveTask(group, this.configAdmin);
+            // if this is an uninstall, check if we have to install an older version
+            // in this case we should do an update instead of uninstall/install (!)
+            final TaskResource second = group.getNextActiveResource();
+            if ( second != null &&
+                ( second.getState() == ResourceState.IGNORED || second.getState() == ResourceState.INSTALLED || second.getState() == ResourceState.INSTALL ) ) {
+                result = new ChangeStateTask(group, ResourceState.UNINSTALLED);
+            } else {
+                result = new ConfigRemoveTask(group, this.configAdmin);
+            }
 		} else {
 	        result = new ConfigInstallTask(group, this.configAdmin);
 		}

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