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/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: ImmutableLibrary.java
* Written by: Dmitry Nadezhin, Sun Microsystems.
*
* Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
*
* Electric(tm) is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Electric(tm) is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Electric(tm); see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, Mass 02111-1307, USA.
*/
package com.sun.electric.database;
import com.sun.electric.database.id.CellId;
import com.sun.electric.database.id.IdReader;
import com.sun.electric.database.id.IdWriter;
import com.sun.electric.database.id.LibId;
import com.sun.electric.database.text.Version;
import com.sun.electric.database.variable.Variable;
import java.io.IOException;
import java.net.URL;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
/**
* Immutable class ImmutableLibrary represents a library.
*/
public class ImmutableLibrary extends ImmutableElectricObject {
/** LibId of this ImmutableLibrary. */
public final LibId libId;
/** file location of this ImmutableLibrary */
public final URL libFile;
/** version of Electric which wrote the ImmutableLibrary. */
public final Version version;
/** DELIB cell files. */
public final Set delibCells;
/**
* The private constructor of ImmutableLibrary. Use the factory "newInstance" instead.
* @param libId id of this ImmutableLibrary.
* @param libFile file location of this ImmutableLibrary.
* @param version version of Electric which wrote this ImmutableLibrary.
* @param flags flags of ImmutableLibrary.
* @param vars array of Variables of this ImmutableLibrary
*/
private ImmutableLibrary(LibId libId, URL libFile, Version version, int flags, Variable[] vars, Set delibCells) {
super(vars, flags);
this.libId = libId;
this.libFile = libFile;
this.version = version;
this.delibCells = delibCells;
}
/**
* Returns new ImmutableLibrary object.
* @param libId id of this ImmutableLibrary.
* @param libFile file location of this ImmutableLibrary.
* @param version version of Electric which wrote this ImmutableLibrary.
* @return new ImmutableLibrary object.
* @throws NullPointerException if libId is null.
*/
public static ImmutableLibrary newInstance(LibId libId, URL libFile, Version version) {
if (libId == null) {
throw new NullPointerException("libId");
}
return new ImmutableLibrary(libId, libFile, version, 0, Variable.NULL_ARRAY, Collections.emptySet());
}
/**
* Returns ImmutableLibrary which differs from this ImmutableLibrary by file.
* @param libFile library file.
* @return ImmutableLibrary which differs from this ImmutableLibrary by file.
* @throws NullPointerException if name is null
*/
public ImmutableLibrary withLibFile(URL libFile) {
if (this.libFile == libFile) {
return this;
}
if (this.libFile != null && this.libFile.equals(libFile)) {
return this;
}
return new ImmutableLibrary(this.libId, libFile, this.version, this.flags, getVars(), this.delibCells);
}
/**
* Returns ImmutableLibrary which differs from this ImmutableLibrary by version.
* @param version version of Electric which wrote this ImmutableLibrary.
* @return ImmutableLibrary which differs from this ImmutableExport by version.
*/
public ImmutableLibrary withVersion(Version version) {
if (this.version == version) {
return this;
}
if (this.version != null && version != null && this.version.equals(version)) {
return this;
}
return new ImmutableLibrary(this.libId, this.libFile, version, this.flags, getVars(), this.delibCells);
}
/**
* Returns ImmutableLibrary which differs from this ImmutableLibrary by additional Variable.
* If this ImmutableLibrary has Variable with the same key as new, the old variable will not be in new
* ImmutableLibrary.
* @param var additional Variable.
* @return ImmutableLibrary with additional Variable.
* @throws NullPointerException if var is null
*/
public ImmutableLibrary withVariable(Variable var) {
Variable[] vars = arrayWithVariable(var.withParam(false).withInherit(false));
if (this.getVars() == vars) {
return this;
}
return new ImmutableLibrary(this.libId, this.libFile, this.version, this.flags, vars, this.delibCells);
}
/**
* Returns ImmutableCell which differs from this ImmutableCell by removing Variable
* with the specified key. Returns this ImmutableCell if it doesn't contain variable with the specified key.
* @param key Variable Key to remove.
* @return ImmutableCell without Variable with the specified key.
* @throws NullPointerException if key is null
*/
public ImmutableLibrary withoutVariable(Variable.Key key) {
Variable[] vars = arrayWithoutVariable(key);
if (this.getVars() == vars) {
return this;
}
return new ImmutableLibrary(this.libId, this.libFile, this.version, this.flags, vars, this.delibCells);
}
/**
* Returns ImmutableLibrary which differs from this ImmutableLibrary by renamed Ids.
* @param idMapper a map from old Ids to new Ids.
* @return ImmutableLibrary with renamed Ids.
*/
ImmutableLibrary withRenamedIds(IdMapper idMapper) {
Variable[] vars = arrayWithRenamedIds(idMapper);
LibId libId = idMapper.get(this.libId);
if (getVars() == vars && this.libId == libId) {
return this;
}
return new ImmutableLibrary(libId, this.libFile, this.version, this.flags, vars, this.delibCells);
}
/**
* Returns ImmutableLibrary which differs from this ImmutableLibrary by flags.
* @param flags new flags.
* @return ImmutableLibrary with the specified flags.
*/
public ImmutableLibrary withFlags(int flags) {
if (this.flags == flags) {
return this;
}
return new ImmutableLibrary(this.libId, this.libFile, this.version, flags, getVars(), this.delibCells);
}
/**
* Returns ImmutableLibrary which differs from this ImmutableLibrary by delibCells.
* @param delibCells new delibCells.
* @return ImmutableLibrary with the specified delibCells.
*/
public ImmutableLibrary withDelibCells(Set delibCells) {
if (delibCells.equals(this.delibCells)) {
return this;
}
if (delibCells.isEmpty()) {
delibCells = Collections.emptySet();
} else {
delibCells = Collections.unmodifiableSet(new HashSet(delibCells));
}
return new ImmutableLibrary(this.libId, this.libFile, this.version, this.flags, getVars(), delibCells);
}
/**
* Writes this ImmutableLibrary to IdWriter.
* @param writer where to write.
*/
@Override
void write(IdWriter writer) throws IOException {
writer.writeLibId(libId);
writer.writeString(libFile != null ? libFile.toString() : "");
writer.writeString(version != null ? version.toString() : "");
writer.writeInt(flags);
writer.writeInt(delibCells.size());
for (CellId delibCell : delibCells) {
writer.writeNodeProtoId(delibCell);
}
super.write(writer);
}
/**
* Reads ImmutableLibrary from SnapshotReader.
* @param reader where to read.
*/
static ImmutableLibrary read(IdReader reader) throws IOException {
LibId libId = reader.readLibId();
String libFileString = reader.readString();
URL libFile = libFileString.length() > 0 ? new URL(libFileString) : null;
String versionString = reader.readString();
Version version = versionString.length() > 0 ? Version.parseVersion(versionString) : null;
int flags = reader.readInt();
Set delibCells = Collections.emptySet();
int numDelibCells = reader.readInt();
if (numDelibCells > 0) {
HashSet rawCells = new HashSet();
for (int i = 0; i < numDelibCells; i++) {
rawCells.add((CellId) reader.readNodeProtoId());
}
delibCells = Collections.unmodifiableSet(rawCells);
}
boolean hasVars = reader.readBoolean();
Variable[] vars = hasVars ? readVars(reader) : Variable.NULL_ARRAY;
return new ImmutableLibrary(libId, libFile, version, flags, vars, delibCells);
}
/**
* Return a hash code value for fields of this object.
* Variables of objects are not compared
*/
@Override
public int hashCodeExceptVariables() {
return libId.hashCode();
}
/**
* Indicates whether fields of other ImmutableElectricObject are equal to fileds of this object.
* Variables of objects are not compared.
* @param o other ImmutableElectricObject.
* @return true if fields of objects are equal.
*/
@Override
public boolean equalsExceptVariables(ImmutableElectricObject o) {
if (this == o) {
return true;
}
if (!(o instanceof ImmutableLibrary)) {
return false;
}
ImmutableLibrary that = (ImmutableLibrary) o;
return this.libId == that.libId && this.libFile == that.libFile
&& this.version == that.version && this.flags == that.flags
&& this.delibCells.equals(that.delibCells);
}
/**
* Returns a printable version of this ImmutableLibrary.
* @return a printable version of this ImmutableLibrary.
*/
@Override
public String toString() {
return libId.toString();
}
/**
* Checks invariant of this ImmutableCell.
* @throws AssertionError if invariant is broken.
*/
public void check() {
super.check(false);
assert libId != null;
if (delibCells.isEmpty()) {
assert delibCells == Collections.emptySet();
}
}
}
