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/*
 * 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.jasper;

import java.io.File;
import java.util.Map;

import javax.servlet.jsp.tagext.TagLibraryInfo;

import org.apache.jasper.compiler.JspConfig;
import org.apache.jasper.compiler.TagPluginManager;
import org.apache.jasper.compiler.TldCache;

/**
 * A class to hold all init parameters specific to the JSP engine.
 *
 * @author Anil K. Vijendran
 * @author Hans Bergsten
 * @author Pierre Delisle
 */
public interface Options {

    /**
     * Returns true if Jasper issues a compilation error instead of a runtime
     * Instantiation error if the class attribute specified in useBean action
     * is invalid.
     * @return true to get an error
     */
    boolean getErrorOnUseBeanInvalidClassAttribute();

    /**
     * @return true to keep the generated source
     */
    boolean getKeepGenerated();

    /**
     * @return true if tag handler pooling is enabled,
     *  false otherwise.
     */
    boolean isPoolingEnabled();

    /**
     * @return true if HTML mapped Servlets are supported.
     */
    boolean getMappedFile();

    /**
     * @return true if debug information in included
     *  in compiled classes.
     */
    boolean getClassDebugInfo();

    /**
     * @return background compile thread check interval in seconds
     */
    int getCheckInterval();

    /**
     * Main development flag, which enables detailed error reports with
     *  sources, as well automatic recompilation of JSPs and tag files.
     *  This setting should usually be false when running
     *  in production.
     * @return true if Jasper is in development mode
     */
    boolean getDevelopment();

    /**
     * @return true to include a source fragment in exception
     *  messages.
     */
    boolean getDisplaySourceFragment();

    /**
     * @return true to suppress generation of SMAP info for
     *  JSR45 debugging.
     */
    boolean isSmapSuppressed();

    /**
     * This setting is ignored if suppressSmap() is true.
     * @return true to write SMAP info for JSR45 debugging to a
     * file.
     */
    boolean isSmapDumped();

    /**
     * @return {@link TrimSpacesOption#TRUE} to remove template text that
     *         consists only of whitespace from the output completely,
     *         {@link TrimSpacesOption#SINGLE} to replace such template text
     *         with a single space, {@link TrimSpacesOption#FALSE} to leave
     *         such template text unchanged or {@link TrimSpacesOption#EXTENDED}
     *         to remove template text that consists only of whitespace and to
     *         replace any sequence of whitespace and new lines within template
     *         text with a single new line.
     */
    TrimSpacesOption getTrimSpaces();

    /**
     * Gets the class-id value that is sent to Internet Explorer when using
     * <jsp:plugin> tags.
     * @return Class-id value
     *
     * @deprecated Will be removed in Tomcat 10.1.x
     */
    @Deprecated String getIeClassId();

    /**
     * @return the work folder
     */
    File getScratchDir();

    /**
     * @return the classpath used to compile generated Servlets
     */
    String getClassPath();

    /**
     * Compiler to use.
     *
     * 

* If null (the default), the java compiler from Eclipse JDT * project, bundled with Tomcat, will be used. Otherwise, the * javac task from Apache Ant will be used to call an external * java compiler and the value of this option will be passed to it. See * Apache Ant documentation for the possible values. * @return the compiler name */ String getCompiler(); /** * @return the compiler target VM, e.g. 1.8. */ String getCompilerTargetVM(); /** * @return the compiler source VM, e.g. 1.8. */ String getCompilerSourceVM(); /** * @return Jasper Java compiler class to use. */ String getCompilerClassName(); /** * The cache that maps URIs, resource paths and parsed TLD files for the * various tag libraries 'exposed' by the web application. * A tag library is 'exposed' either explicitly in * web.xml or implicitly via the uri tag in the TLD * of a taglib deployed in a jar file (WEB-INF/lib). * * @return the instance of the TldLocationsCache * for the web-application. */ TldCache getTldCache(); /** * @return Java platform encoding to generate the JSP page servlet. */ String getJavaEncoding(); /** * The boolean flag to tell Ant whether to fork JSP page compilations. * *

* Is used only when Jasper uses an external java compiler (wrapped through * a javac Apache Ant task). * @return true to fork a process during compilation */ boolean getFork(); /** * @return JSP configuration information specified in web.xml. */ JspConfig getJspConfig(); /** * @return true to generate a X-Powered-By response header. */ boolean isXpoweredBy(); /** * @return a Tag Plugin Manager */ TagPluginManager getTagPluginManager(); /** * Indicates whether text strings are to be generated as char arrays. * * @return true if text strings are to be generated as char * arrays, false otherwise */ boolean genStringAsCharArray(); /** * @return modification test interval. */ int getModificationTestInterval(); /** * @return true if re-compile will occur on a failure. */ boolean getRecompileOnFail(); /** * @return true is caching is enabled * (used for precompilation). */ boolean isCaching(); /** * The web-application wide cache for the TagLibraryInfo tag library * descriptors, used if {@link #isCaching()} returns true. * *

* Using this cache avoids the cost of repeating the parsing of a tag * library descriptor XML file (performed by TagLibraryInfoImpl.parseTLD). *

* * @return the Map(String uri, TagLibraryInfo tld) instance. */ Map getCache(); /** * The maximum number of loaded jsps per web-application. If there are more * jsps loaded, they will be unloaded. If unset or less than 0, no jsps * are unloaded. * @return The JSP count */ int getMaxLoadedJsps(); /** * @return the idle time in seconds after which a JSP is unloaded. * If unset or less or equal than 0, no jsps are unloaded. */ int getJspIdleTimeout(); /** * @return {@code true} if the quote escaping required by section JSP.1.6 of * the JSP specification should be applied to scriplet expression. */ boolean getStrictQuoteEscaping(); /** * @return {@code true} if EL expressions used within attributes should have * the quoting rules in JSP.1.6 applied to the expression. */ boolean getQuoteAttributeEL(); /** * Should the container include the time the file was generated in the * comments at the start of a Java file generated from a JSP or tag. * Defaults to {@code true}. * * @return {@code true} to include the timestamp, otherwise don't include it */ default boolean getGeneratedJavaAddTimestamp() { return true; } }




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