| /* |
| * Copyright 2002,2004 The Apache Software Foundation. |
| * |
| * 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.apache.commons.jelly.tags.core; |
| |
| import org.apache.commons.jelly.JellyException; |
| import org.apache.commons.jelly.JellyTagException; |
| import org.apache.commons.jelly.MissingAttributeException; |
| import org.apache.commons.jelly.TagSupport; |
| import org.apache.commons.jelly.XMLOutput; |
| |
| /** Imports another script. |
| * |
| * <p> |
| * By default, the imported script does not have access to |
| * the parent script's variable context. This behaviour |
| * may be modified using the <code>inherit</code> attribute. |
| * </p> |
| * |
| * @author <a href="mailto:bob@eng.werken.com">bob mcwhirter</a> |
| * @version $Revision: 1.10 $ |
| */ |
| |
| public class ImportTag extends TagSupport { |
| |
| /** |
| * the location of the script being imported, relative to the |
| * current script |
| */ |
| private String uri; |
| |
| /** |
| * Whether the imported script has access to the caller's variables |
| */ |
| private boolean inherit; |
| |
| /** |
| * The file to be imported. Mutually exclusive with uri. |
| * uri takes precedence. |
| */ |
| private String file; |
| |
| /** |
| * Create a new Import tag. |
| */ |
| public ImportTag() { |
| } |
| |
| |
| // Tag interface |
| //------------------------------------------------------------------------- |
| /** |
| * Perform tag processing |
| * @param output the destination for output |
| * @throws MissingAttributeException if a required attribute is missing |
| * @throws JellyTagException on any other errors |
| */ |
| public void doTag(XMLOutput output) throws MissingAttributeException, JellyTagException { |
| if (uri == null && file == null) { |
| throw new MissingAttributeException( "uri" ); |
| } |
| |
| try { |
| if (uri != null) { |
| // we need to create a new JellyContext of the URI |
| // take off the script name from the URL |
| context.runScript(uri, output, true, isInherit() ); |
| } else { |
| context.runScript(new java.io.File(file), output, true, |
| isInherit()); |
| } |
| } |
| catch (JellyException e) { |
| throw new JellyTagException("could not import script",e); |
| } |
| } |
| |
| // Properties |
| //------------------------------------------------------------------------- |
| |
| /** |
| * @return whether property inheritence is enabled |
| */ |
| public boolean isInherit() { |
| return inherit; |
| } |
| |
| /** |
| * Sets whether property inheritence is enabled or disabled |
| */ |
| public void setInherit(boolean inherit) { |
| this.inherit = inherit; |
| } |
| |
| /** |
| * Sets the URI (relative URI or absolute URL) for the script to evaluate. |
| */ |
| public void setUri(String uri) { |
| this.uri = uri; |
| } |
| |
| |
| /** |
| * Sets the file for the script to evaluate. |
| * @param file The file to set |
| */ |
| public void setFile(String file) { |
| this.file = file; |
| } |
| |
| } |