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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.language.simple;
import com.yahoo.language.process.Token;
import com.yahoo.language.process.TokenScript;
import com.yahoo.language.process.TokenType;
import java.util.ArrayList;
import java.util.List;
/**
* @author Mathias Mølster Lidal
*/
public class SimpleToken implements Token {
private final List<Token> components = new ArrayList<>();
private final String orig;
private TokenType type = TokenType.UNKNOWN;
private TokenScript script = TokenScript.UNKNOWN;
private String tokenString;
private boolean specialToken = false;
private long offset = 0;
public SimpleToken(String orig) {
this(orig, null);
}
public SimpleToken(String orig, String tokenString) {
this.orig = orig;
this.tokenString = tokenString;
}
@Override
public String getOrig() {
return orig;
}
@Override
public int getNumStems() {
return tokenString != null ? 1 : 0;
}
@Override
public String getStem(int i) {
return tokenString;
}
@Override
public int getNumComponents() {
return components.size();
}
@Override
public Token getComponent(int i) {
return components.get(i);
}
public SimpleToken addComponent(Token token) {
components.add(token);
return this;
}
@Override
public String getTokenString() {
return tokenString;
}
public SimpleToken setTokenString(String str) {
tokenString = str;
return this;
}
@Override
public TokenType getType() {
return type;
}
public SimpleToken setType(TokenType type) {
this.type = type;
return this;
}
@Override
public TokenScript getScript() {
return script;
}
public SimpleToken setScript(TokenScript script) {
this.script = script;
return this;
}
@Override
public boolean isSpecialToken() {
return specialToken;
}
public SimpleToken setSpecialToken(boolean specialToken) {
this.specialToken = specialToken;
return this;
}
@Override
public long getOffset() {
return offset;
}
public SimpleToken setOffset(long offset) {
this.offset = offset;
return this;
}
@Override
public int hashCode() {
return orig.hashCode();
}
@Override
public boolean equals(Object obj) {
if (!(obj instanceof Token)) {
return false;
}
Token rhs = (Token)obj;
if (!getType().equals(rhs.getType())) {
return false;
}
if (!equalsOpt(getOrig(), rhs.getOrig())) {
return false;
}
if (getOffset() != rhs.getOffset()) {
return false;
}
if (!equalsOpt(getScript(), rhs.getScript())) {
return false;
}
if (!equalsOpt(getTokenString(), rhs.getTokenString())) {
return false;
}
if (isSpecialToken() != rhs.isSpecialToken()) {
return false;
}
if (getNumComponents() != rhs.getNumComponents()) {
return false;
}
for (int i = 0, len = getNumComponents(); i < len; ++i) {
if (!equalsOpt(getComponent(i), rhs.getComponent(i))) {
return false;
}
}
return true;
}
private static boolean equalsOpt(Object lhs, Object rhs) {
if (lhs == null || rhs == null) {
return lhs == rhs;
}
return lhs.equals(rhs);
}
@Override
public String toString() {
return "token : " + getClass().getSimpleName() + " {\n" + toString(this, " ") + "}";
}
private static String toString(Token token, String indent) {
StringBuilder builder = new StringBuilder();
builder.append(indent).append("components : {\n");
for (int i = 0, len = token.getNumComponents(); i < len; ++i) {
Token comp = token.getComponent(i);
builder.append(indent).append(" [").append(i).append("] : ").append(comp.getClass().getSimpleName());
builder.append(" {\n").append(toString(comp, indent + " "));
builder.append(indent).append(" }\n");
}
builder.append(indent).append("}\n");
builder.append(indent).append("offset : ").append(token.getOffset()).append("\n");
builder.append(indent).append("orig : ").append(quoteString(token.getOrig())).append("\n");
builder.append(indent).append("script : ").append(token.getScript()).append("\n");
builder.append(indent).append("special : ").append(token.isSpecialToken()).append("\n");
builder.append(indent).append("token string : ").append(quoteString(token.getTokenString())).append("\n");
builder.append(indent).append("type : ").append(token.getType()).append("\n");
return builder.toString();
}
private static String quoteString(String str) {
return str != null ? "'" + str + "'" : null;
}
@Override
public boolean isIndexable() {
return getType().isIndexable() && (getOrig().length() > 0);
}
}
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