/**

* Jooby https://jooby.io

* Apache License Version 2.0 https://jooby.io/LICENSE.txt

* Copyright 2014 Edgar Espina

*/

package io.jooby.internal;

import io.jooby.Body;

import io.jooby.Context;

import io.jooby.MediaType;

import io.jooby.SneakyThrows;

import io.jooby.ValueNode;

import javax.annotation.Nonnull;

import java.io.IOException;

import java.io.InputStream;

import java.lang.reflect.Type;

import java.nio.channels.ReadableByteChannel;

import java.nio.charset.StandardCharsets;

import java.nio.file.Files;

import java.nio.file.Path;

import java.util.Collections;

import java.util.List;

import java.util.Map;

public class FileBody implements Body {

private Context ctx;

private Path file;

public FileBody(Context ctx, Path file) {

this.ctx = ctx;

this.file = file;

}

@Override public long getSize() {

try {

return Files.size(file);

} catch (IOException x) {

throw SneakyThrows.propagate(x);

}

}

@Override public boolean isInMemory() {

return false;

}

@Override public ReadableByteChannel channel() {

try {

return Files.newByteChannel(file);

} catch (IOException x) {

throw SneakyThrows.propagate(x);

}

}

@Override public InputStream stream() {

try {

return Files.newInputStream(file);

} catch (IOException x) {

throw SneakyThrows.propagate(x);

}

}

@Override public byte[] bytes() {

try {

return Files.readAllBytes(file);

} catch (IOException x) {

throw SneakyThrows.propagate(x);

}

}

@Nonnull @Override public String value() {

return value(StandardCharsets.UTF_8);

}

@Nonnull @Override public List<String> toList() {

return Collections.singletonList(value());

}

@Nonnull @Override public ValueNode get(@Nonnull int index) {

return index == 0 ? this : get(Integer.toString(index));

}

@Nonnull @Override public ValueNode get(@Nonnull String name) {

return new MissingValue(name);

}

@Override public String name() {

return "body";

}

@Nonnull @Override public <T> T to(@Nonnull Type type) {

return ctx.decode(type, ctx.getRequestType(MediaType.text));

}

@Override public Map<String, List<String>> toMultimap() {

return Collections.emptyMap();

}

}