package com.github.dockerjava.api.model;

import java.io.IOException;

import java.io.Serializable;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import java.util.Map;

import com.fasterxml.jackson.core.JsonGenerator;

import com.fasterxml.jackson.core.JsonParser;

import com.fasterxml.jackson.core.JsonProcessingException;

import com.fasterxml.jackson.core.ObjectCodec;

import com.fasterxml.jackson.databind.DeserializationContext;

import com.fasterxml.jackson.databind.JsonDeserializer;

import com.fasterxml.jackson.databind.JsonNode;

import com.fasterxml.jackson.databind.JsonSerializer;

import com.fasterxml.jackson.databind.SerializerProvider;

import com.fasterxml.jackson.databind.annotation.JsonDeserialize;

import com.fasterxml.jackson.databind.annotation.JsonSerialize;

import com.fasterxml.jackson.databind.node.NullNode;

// This is not going to be serialized

@JsonDeserialize(using = VolumeBinds.Deserializer.class)

@JsonSerialize(using = VolumeBinds.Serializer.class)

public class VolumeBinds implements Serializable {

private static final long serialVersionUID = 1L;

private final VolumeBind[] binds;

public VolumeBinds(VolumeBind... binds) {

this.binds = binds;

}

public VolumeBind[] getBinds() {

return binds;

}

public static final class Serializer extends JsonSerializer<VolumeBinds> {

@Override

public void serialize(VolumeBinds value, JsonGenerator jgen, SerializerProvider provider) throws IOException,

JsonProcessingException {

jgen.writeStartObject();

for (final VolumeBind bind : value.binds) {

jgen.writeStringField(bind.getContainerPath(), bind.getHostPath());

}

jgen.writeEndObject();

}

}

public static final class Deserializer extends JsonDeserializer<VolumeBinds> {

@Override

public VolumeBinds deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)

throws IOException, JsonProcessingException {

List<VolumeBind> binds = new ArrayList<VolumeBind>();

ObjectCodec oc = jsonParser.getCodec();

JsonNode node = oc.readTree(jsonParser);

for (Iterator<Map.Entry<String, JsonNode>> it = node.fields(); it.hasNext();) {

Map.Entry<String, JsonNode> field = it.next();

JsonNode value = field.getValue();

if (!value.equals(NullNode.getInstance())) {

if (!value.isTextual()) {

throw deserializationContext.mappingException("Expected path for '" + field.getKey()

+ "'in host but got '" + value + "'.");

}

VolumeBind bind = new VolumeBind(value.asText(), field.getKey());

binds.add(bind);

}

}

return new VolumeBinds(binds.toArray(new VolumeBind[binds.size()]));

}

}

}