| Class | Line # | Actions | |||||
|---|---|---|---|---|---|---|---|
| VelocityManager | 37 | 2 | 0% | 2 | 4 |
| 1 | /* | |
| 2 | * See the NOTICE file distributed with this work for additional | |
| 3 | * information regarding copyright ownership. | |
| 4 | * | |
| 5 | * This is free software; you can redistribute it and/or modify it | |
| 6 | * under the terms of the GNU Lesser General Public License as | |
| 7 | * published by the Free Software Foundation; either version 2.1 of | |
| 8 | * the License, or (at your option) any later version. | |
| 9 | * | |
| 10 | * This software is distributed in the hope that it will be useful, | |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | * Lesser General Public License for more details. | |
| 14 | * | |
| 15 | * You should have received a copy of the GNU Lesser General Public | |
| 16 | * License along with this software; if not, write to the Free | |
| 17 | * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
| 18 | * 02110-1301 USA, or see the FSF site: http://www.fsf.org. | |
| 19 | */ | |
| 20 | package org.xwiki.velocity; | |
| 21 | ||
| 22 | import java.io.Reader; | |
| 23 | import java.io.Writer; | |
| 24 | ||
| 25 | import javax.script.ScriptContext; | |
| 26 | ||
| 27 | import org.apache.velocity.VelocityContext; | |
| 28 | import org.xwiki.component.annotation.Role; | |
| 29 | ||
| 30 | /** | |
| 31 | * Provides access to the main XWiki Velocity objects. | |
| 32 | * | |
| 33 | * @since 1.5M2 | |
| 34 | * @version $Id: 28deb701e8e553e3ed33925b6462835fc9f61a66 $ | |
| 35 | */ | |
| 36 | @Role | |
| 37 | public interface VelocityManager | |
| 38 | { | |
| 39 | /** | |
| 40 | * @return the up to date current Velocity Context | |
| 41 | */ | |
| 42 | VelocityContext getVelocityContext(); | |
| 43 | ||
| 44 | /** | |
| 45 | * @return the current Velocity Context without any modification | |
| 46 | * @since 8.3M1 | |
| 47 | */ | |
| 48 | 0 | default VelocityContext getCurrentVelocityContext() |
| 49 | { | |
| 50 | 0 | return getVelocityContext(); |
| 51 | } | |
| 52 | ||
| 53 | /** | |
| 54 | * Get the current Velocity Engine or create one if none has been created. | |
| 55 | * | |
| 56 | * @return the current Velocity Engine retrieved from the Execution Context | |
| 57 | * @throws XWikiVelocityException if the Velocity Engine cannot be created | |
| 58 | */ | |
| 59 | // TODO: Move the engine creation to some initialization method instead and remove the need for throwing an | |
| 60 | // exception | |
| 61 | VelocityEngine getVelocityEngine() throws XWikiVelocityException; | |
| 62 | ||
| 63 | /** | |
| 64 | * Renders the input string using the context into the output writer. | |
| 65 | * <p> | |
| 66 | * The current {@link ScriptContext} will be used and updated after the execution. | |
| 67 | * <p> | |
| 68 | * Anything set in the current {@link VelocityContext} will also be taken into account. | |
| 69 | * | |
| 70 | * @param out the writer in which to render the output | |
| 71 | * @param templateName the string to be used as the template name for log messages in case of error. Also used | |
| 72 | * internally by Velocity as a cache index key for caching macros. | |
| 73 | * @param source the input containing the VTL to be rendered, as a Reader | |
| 74 | * @return false if empty, true otherwise | |
| 75 | * @throws XWikiVelocityException in case of error | |
| 76 | * @since 8.3M1 | |
| 77 | */ | |
| 78 | 0 | default boolean evaluate(Writer out, String templateName, Reader source) throws XWikiVelocityException |
| 79 | { | |
| 80 | 0 | return getVelocityEngine().evaluate(getVelocityContext(), out, templateName, source); |
| 81 | } | |
| 82 | } |