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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.data.access.slime;
import java.util.Map;
import java.util.AbstractMap;
import java.util.List;
import java.util.ArrayList;
public final class SlimeAdapter implements com.yahoo.data.access.Inspector {
private com.yahoo.slime.Inspector inspector;
public SlimeAdapter(com.yahoo.slime.Inspector inspector) { this.inspector = inspector; }
@Override public boolean equals(Object rhs) {
if (!(rhs instanceof SlimeAdapter)) {
return false;
}
return inspector.equals(((SlimeAdapter)rhs).inspector);
}
@Override public int hashCode() { return inspector.hashCode(); }
@Override public String toString() { return inspector.toString(); }
public com.yahoo.data.access.Inspector inspect() { return this; }
public boolean valid() { return inspector.valid(); }
public com.yahoo.data.access.Type type() {
switch(inspector.type()) {
case NIX: return com.yahoo.data.access.Type.EMPTY;
case BOOL: return com.yahoo.data.access.Type.BOOL;
case LONG: return com.yahoo.data.access.Type.LONG;
case DOUBLE: return com.yahoo.data.access.Type.DOUBLE;
case STRING: return com.yahoo.data.access.Type.STRING;
case DATA: return com.yahoo.data.access.Type.DATA;
case ARRAY: return com.yahoo.data.access.Type.ARRAY;
case OBJECT: return com.yahoo.data.access.Type.OBJECT;
}
return com.yahoo.data.access.Type.EMPTY;
}
private boolean verify(com.yahoo.slime.Type ok_type_a) {
com.yahoo.slime.Type my_type = inspector.type();
return (valid() && (my_type == ok_type_a));
}
private boolean verify(com.yahoo.slime.Type ok_type_a,
com.yahoo.slime.Type ok_type_b)
{
com.yahoo.slime.Type my_type = inspector.type();
return (valid() && (my_type == ok_type_a || my_type == ok_type_b));
}
private boolean verify(com.yahoo.slime.Type ok_type_a,
com.yahoo.slime.Type ok_type_b,
com.yahoo.slime.Type ok_type_c)
{
com.yahoo.slime.Type my_type = inspector.type();
return (valid() && (my_type == ok_type_a || my_type == ok_type_b || my_type == ok_type_c));
}
public int entryCount() { return inspector.entries(); }
public int fieldCount() { return inspector.fields(); }
public boolean asBool() {
if (!verify(com.yahoo.slime.Type.NIX, com.yahoo.slime.Type.BOOL)) {
throw new IllegalStateException("invalid data extraction!");
}
return inspector.asBool();
}
public long asLong() {
if (!verify(com.yahoo.slime.Type.NIX, com.yahoo.slime.Type.LONG, com.yahoo.slime.Type.DOUBLE)) {
throw new IllegalStateException("invalid data extraction!");
}
return inspector.asLong();
}
public double asDouble() {
if (!verify(com.yahoo.slime.Type.NIX, com.yahoo.slime.Type.DOUBLE, com.yahoo.slime.Type.LONG)) {
throw new IllegalStateException("invalid data extraction!");
}
return inspector.asDouble();
}
public String asString() {
if (!verify(com.yahoo.slime.Type.NIX, com.yahoo.slime.Type.STRING)) {
throw new IllegalStateException("invalid data extraction!");
}
return inspector.asString();
}
public byte[] asUtf8() {
if (!verify(com.yahoo.slime.Type.NIX, com.yahoo.slime.Type.STRING)) {
throw new IllegalStateException("invalid data extraction!");
}
return inspector.asUtf8();
}
public byte[] asData() {
if (!verify(com.yahoo.slime.Type.NIX, com.yahoo.slime.Type.DATA)) {
throw new IllegalStateException("invalid data extraction!");
}
return inspector.asData();
}
public boolean asBool(boolean defaultValue) {
if (!verify(com.yahoo.slime.Type.BOOL)) {
return defaultValue;
}
return inspector.asBool();
}
public long asLong(long defaultValue) {
if (!verify(com.yahoo.slime.Type.LONG, com.yahoo.slime.Type.DOUBLE)) {
return defaultValue;
}
return inspector.asLong();
}
public double asDouble(double defaultValue) {
if (!verify(com.yahoo.slime.Type.DOUBLE, com.yahoo.slime.Type.LONG)) {
return defaultValue;
}
return inspector.asDouble();
}
public String asString(String defaultValue) {
if (!verify(com.yahoo.slime.Type.STRING)) {
return defaultValue;
}
return inspector.asString();
}
public byte[] asUtf8(byte[] defaultValue) {
if (!verify(com.yahoo.slime.Type.STRING)) {
return defaultValue;
}
return inspector.asUtf8();
}
public byte[] asData(byte[] defaultValue) {
if (!verify(com.yahoo.slime.Type.DATA)) {
return defaultValue;
}
return inspector.asData();
}
public void traverse(final com.yahoo.data.access.ArrayTraverser at) {
inspector.traverse(new com.yahoo.slime.ArrayTraverser() {
public void entry(int idx, com.yahoo.slime.Inspector inspector) { at.entry(idx, new SlimeAdapter(inspector)); }
});
}
public void traverse(final com.yahoo.data.access.ObjectTraverser ot) {
inspector.traverse(new com.yahoo.slime.ObjectTraverser() {
public void field(String name, com.yahoo.slime.Inspector inspector) { ot.field(name, new SlimeAdapter(inspector)); }
});
}
public com.yahoo.data.access.Inspector entry(int idx) { return new SlimeAdapter(inspector.entry(idx)); }
public com.yahoo.data.access.Inspector field(String name) { return new SlimeAdapter(inspector.field(name)); }
public Iterable<com.yahoo.data.access.Inspector> entries() {
final List<com.yahoo.data.access.Inspector> list = new ArrayList<>();
inspector.traverse(new com.yahoo.slime.ArrayTraverser() {
public void entry(int idx, com.yahoo.slime.Inspector inspector) { list.add(new SlimeAdapter(inspector)); }
});
return list;
}
public Iterable<Map.Entry<String,com.yahoo.data.access.Inspector>> fields() {
final List<Map.Entry<String,com.yahoo.data.access.Inspector>> list = new ArrayList<>();
inspector.traverse(new com.yahoo.slime.ObjectTraverser() {
public void field(String name, com.yahoo.slime.Inspector inspector) {
list.add(new AbstractMap.SimpleImmutableEntry<String,com.yahoo.data.access.Inspector>(name, new SlimeAdapter(inspector)));
}
});
return list;
}
}
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