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Test support for Edison Microservices.
package de.otto.edison.testsupport.util;
import java.time.Instant;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import static java.time.Instant.parse;
import static java.util.Collections.emptyMap;
import static java.util.Date.from;
import static java.util.stream.Collectors.toList;
public class JsonMap {
private final Object jsonObject;
private JsonMap(final Object jsonObject) {
this.jsonObject = jsonObject;
}
public static JsonMap jsonMapFrom(final Map map) {
return new JsonMap(map);
}
public static JsonMap jsonMapFrom(final Object map) {
if (map instanceof JsonMap) {
return (JsonMap) map;
} else {
return new JsonMap(map);
}
}
public void remove(final String key) {
if (jsonObject == null) {
throw new NullPointerException("json object is null");
}
if (is(Map.class)) {
((Map) jsonObject).remove(key);
} else {
throw new IllegalArgumentException("not a map but a " + jsonObject.getClass().getSimpleName());
}
}
public JsonMap get(final String s) {
if (jsonObject == null) {
throw new NullPointerException("json object is null");
}
if (is(Map.class)) {
String[] segments = s.split("\\.");
if (segments.length < 2) {
final Object object = ((Map) jsonObject).get(s);
return object != null ? new JsonMap(object) : null;
} else {
return get(segments[0]).get(s.substring(s.indexOf(".")+1));
}
} else {
throw new IllegalArgumentException("not a map but a " + jsonObject.getClass().getSimpleName());
}
}
public String getString(final String key) {
if (jsonObject == null) {
throw new NullPointerException("json object is null");
}
if (is(Map.class)) {
final Object value = get(key);
if (value == null) {
return null;
} else {
return value.toString();
}
} else {
throw new IllegalArgumentException("not a map but a " + jsonObject.getClass().getSimpleName());
}
}
public String getString(final String key, final String defaultValue) {
final String result = getString(key);
return result != null ? result : defaultValue;
}
public Boolean getBoolean(final String key) {
if (jsonObject == null) {
throw new NullPointerException("json object is null");
}
if (is(Map.class)) {
final Object value = get(key);
return value != null ? Boolean.valueOf(value.toString()) : null;
} else {
throw new IllegalArgumentException("not a map but a " + jsonObject.getClass().getSimpleName());
}
}
public boolean getBoolean(final String key, final boolean defaultValue) {
final Boolean result = getBoolean(key);
return result != null ? result : defaultValue;
}
public Integer getInt(final String key) {
if (jsonObject == null) {
throw new NullPointerException("json object is null");
}
if (is(Map.class)) {
final Object value = get(key);
return value != null ? Integer.valueOf(value.toString()) : null;
} else {
throw new IllegalArgumentException("not a map but a " + jsonObject.getClass().getSimpleName());
}
}
public Integer getInt(final String key, final Integer defaultValue) {
final Integer result = getInt(key);
return result != null ? result : defaultValue;
}
public Long getLong(final String key) {
if (jsonObject == null) {
throw new NullPointerException("json object is null");
}
if (is(Map.class)) {
final Object value = get(key);
return value != null ? Long.valueOf(value.toString()) : null;
} else {
throw new IllegalArgumentException("not a map but a " + jsonObject.getClass().getSimpleName());
}
}
public long getLong(final String key, final long defaultValue) {
final Long result = getLong(key);
return result != null ? result : defaultValue;
}
public Float getFloat(final String key) {
if (jsonObject == null) {
throw new NullPointerException("json object is null");
}
if (is(Map.class)) {
final Object value = get(key);
return value != null ? Float.valueOf(value.toString()) : null;
} else {
throw new IllegalArgumentException("not a map but a " + jsonObject.getClass().getSimpleName());
}
}
public Float getFloat(final String key, final float defaultValue) {
final Float result = getFloat(key);
return result != null ? result : defaultValue;
}
public Double getDouble(final String key) {
if (jsonObject == null) {
throw new NullPointerException("json object is null");
}
if (is(Map.class)) {
final Object value = get(key);
return value != null ? Double.valueOf(value.toString()) : null;
} else {
throw new IllegalArgumentException("not a map but a " + jsonObject.getClass().getSimpleName());
}
}
public Double getDouble(final String key, final double defaultValue) {
final Double result = getDouble(key);
return result != null ? result : defaultValue;
}
public Object getObject(final String key) {
if (jsonObject == null) {
throw new NullPointerException("json object is null");
}
if (is(Map.class)) {
return get(key);
} else {
throw new IllegalArgumentException("not a map but a " + jsonObject.getClass().getSimpleName());
}
}
public Date getDate(final String key) {
if (jsonObject == null) {
throw new NullPointerException("json object is null");
}
if (is(Map.class)) {
final JsonMap value = get(key);
if (value == null) {
return null;
} else {
if (value.is(Date.class)) {
return (Date) value.jsonObject;
} if (value.is(String.class)) {
return from(parse(value.toString()));
} else {
throw new ClassCastException("Value of " + key + " is not a date but a " + value.getClass().getSimpleName());
}
}
} else {
throw new IllegalArgumentException("not a map but a " + jsonObject.getClass().getSimpleName());
}
}
public Instant getInstant(final String key) {
if (jsonObject == null) {
throw new NullPointerException("json object is null");
}
if (is(Map.class)) {
final String value = getString(key);
return value != null ? parse(value) : null;
} else {
throw new IllegalArgumentException("not a map but a " + jsonObject.getClass().getSimpleName());
}
}
@SuppressWarnings("unchecked")
public List asListOf(final Class type) {
if (jsonObject == null) {
return null;
}
if (is(List.class)) {
if (JsonMap.class.isAssignableFrom(type)) {
return (List) ((List)jsonObject).stream().map(JsonMap::new).collect(toList());
} else {
return ((List) jsonObject);
}
} else {
throw new ClassCastException("not a collection but a " + jsonObject.getClass().getSimpleName());
}
}
@SuppressWarnings({"unchecked"})
public Set asSetOf(final Class type) {
if (jsonObject == null) {
return null;
}
if (is(Collection.class)) {
return new HashSet((Collection) jsonObject);
} else {
throw new ClassCastException("not a collection but a " + jsonObject.getClass().getSimpleName());
}
}
@SuppressWarnings("unchecked")
public Map asMap() {
if (jsonObject == null) {
return emptyMap();
}
if (is(Map.class)) {
return (Map) jsonObject;
}
throw new IllegalStateException("not a map but a " + jsonObject.getClass().getSimpleName());
}
@SuppressWarnings("unchecked")
public Map asMapWithKeysOfType(final Class type) {
if (jsonObject == null) {
return emptyMap();
}
if (is(Map.class)) {
return (Map) jsonObject;
}
throw new IllegalStateException("not a map but a " + jsonObject.getClass().getSimpleName());
}
@SuppressWarnings("unchecked")
public Set keySet() {
if (jsonObject == null) {
return Collections.emptySet();
}
if (is(Map.class)) {
return ((Map) jsonObject).keySet();
}
throw new IllegalStateException("not a map but a " + jsonObject.getClass().getSimpleName());
}
private boolean is(final Class type) {
return type.isAssignableFrom(jsonObject.getClass());
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
JsonMap jsonMap = (JsonMap) o;
if (jsonObject != null ? !jsonObject.equals(jsonMap.jsonObject) : jsonMap.jsonObject != null) return false;
return true;
}
@Override
public int hashCode() {
return jsonObject != null ? jsonObject.hashCode() : 0;
}
public String toString() {
return jsonObject.toString();
}
}