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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * accompanied this code).
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package jdk.nashorn.internal.runtime;

import java.io.Serializable;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

Class representing a persistent compiled script.
/** * Class representing a persistent compiled script. */
public final class StoredScript implements Serializable {
Compilation id
/** Compilation id */
private final int compilationId;
Main class name.
/** Main class name. */
private final String mainClassName;
Map of class names to class bytes.
/** Map of class names to class bytes. */
private final Map<String, byte[]> classBytes;
Constants array.
/** Constants array. */
private final Object[] constants;
Function initializers
/** Function initializers */
private final Map<Integer, FunctionInitializer> initializers; private static final long serialVersionUID = 2958227232195298340L;
Constructor.
Params:
  • compilationId – compilation id
  • mainClassName – main class name
  • classBytes – map of class names to class bytes
  • initializers – initializer map, id -> FunctionInitializer
  • constants – constants array
/** * Constructor. * * @param compilationId compilation id * @param mainClassName main class name * @param classBytes map of class names to class bytes * @param initializers initializer map, id -&gt; FunctionInitializer * @param constants constants array */
public StoredScript(final int compilationId, final String mainClassName, final Map<String, byte[]> classBytes, final Map<Integer, FunctionInitializer> initializers, final Object[] constants) { this.compilationId = compilationId; this.mainClassName = mainClassName; this.classBytes = classBytes; this.constants = constants; this.initializers = initializers; }
Get the compilation id for this StoredScript
Returns:compilation id
/** * Get the compilation id for this StoredScript * @return compilation id */
public int getCompilationId() { return compilationId; } private Map<String, Class<?>> installClasses(final Source source, final CodeInstaller installer) { final Map<String, Class<?>> installedClasses = new HashMap<>(); final byte[] mainClassBytes = classBytes.get(mainClassName); final Class<?> mainClass = installer.install(mainClassName, mainClassBytes); installedClasses.put(mainClassName, mainClass); for (final Map.Entry<String, byte[]> entry : classBytes.entrySet()) { final String className = entry.getKey(); if (!className.equals(mainClassName)) { installedClasses.put(className, installer.install(className, entry.getValue())); } } installer.initialize(installedClasses.values(), source, constants); return installedClasses; } FunctionInitializer installFunction(final RecompilableScriptFunctionData data, final CodeInstaller installer) { final Map<String, Class<?>> installedClasses = installClasses(data.getSource(), installer); assert initializers != null; assert initializers.size() == 1; final FunctionInitializer initializer = initializers.values().iterator().next(); for (int i = 0; i < constants.length; i++) { if (constants[i] instanceof RecompilableScriptFunctionData) { // replace deserialized function data with the ones we already have final RecompilableScriptFunctionData newData = data.getScriptFunctionData(((RecompilableScriptFunctionData) constants[i]).getFunctionNodeId()); assert newData != null; newData.initTransients(data.getSource(), installer); constants[i] = newData; } } initializer.setCode(installedClasses.get(initializer.getClassName())); return initializer; }
Install as script.
Params:
  • source – the source
  • installer – the installer
Returns:main script class
/** * Install as script. * * @param source the source * @param installer the installer * @return main script class */
Class<?> installScript(final Source source, final CodeInstaller installer) { final Map<String, Class<?>> installedClasses = installClasses(source, installer); for (final Object constant : constants) { if (constant instanceof RecompilableScriptFunctionData) { final RecompilableScriptFunctionData data = (RecompilableScriptFunctionData) constant; data.initTransients(source, installer); final FunctionInitializer initializer = initializers.get(data.getFunctionNodeId()); if (initializer != null) { initializer.setCode(installedClasses.get(initializer.getClassName())); data.initializeCode(initializer); } } } return installedClasses.get(mainClassName); } @Override public int hashCode() { int hash = mainClassName.hashCode(); hash = 31 * hash + classBytes.hashCode(); hash = 31 * hash + Arrays.hashCode(constants); return hash; } @Override public boolean equals(final Object obj) { if (obj == this) { return true; } if (!(obj instanceof StoredScript)) { return false; } final StoredScript cs = (StoredScript) obj; return mainClassName.equals(cs.mainClassName) && classBytes.equals(cs.classBytes) && Arrays.equals(constants, cs.constants); } }