com.microsoft.kiota.CaseInsensitiveMap Maven / Gradle / Ivy
The newest version!
package com.microsoft.kiota;
import jakarta.annotation.Nonnull;
import jakarta.annotation.Nullable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Locale;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
/**
* A map that is case-insensitive on the keys
*/
public class CaseInsensitiveMap implements Map> {
/**
* Default constructor
*/
public CaseInsensitiveMap() {
// default constructor
}
private final HashMap> internalMap = new HashMap<>();
/**
* Formats the string to lower case
* @param key string to normalize to lower case
* @return The normalized string
*/
@Nonnull protected String normalizeKey(@Nonnull final String key) {
Objects.requireNonNull(key);
return key.toLowerCase(Locale.ROOT);
}
/** {@inheritDoc} */
@Override
public int size() {
return internalMap.size();
}
/** {@inheritDoc} */
@Override
public boolean isEmpty() {
return internalMap.isEmpty();
}
/** {@inheritDoc} */
@Override
public boolean containsKey(@Nonnull final Object key) {
Objects.requireNonNull(key);
if (key instanceof String) {
return internalMap.containsKey(normalizeKey((String) key));
} else {
return false;
}
}
/** {@inheritDoc} */
@Override
public boolean containsValue(@Nonnull final Object value) {
Objects.requireNonNull(value);
return internalMap.containsValue(value);
}
/** {@inheritDoc} */
@Override
@Nonnull public Set get(@Nonnull final Object key) {
Objects.requireNonNull(key);
if (key instanceof String) {
return internalMap.get(normalizeKey((String) key));
} else {
return Collections.emptySet();
}
}
/** {@inheritDoc} */
@Override
@Nonnull public Set put(@Nonnull final String key, @Nonnull final Set value) {
Objects.requireNonNull(key);
Objects.requireNonNull(value);
return internalMap.put(normalizeKey(key), new HashSet<>(value));
}
/** {@inheritDoc} */
@Override
@Nonnull public Set remove(@Nonnull final Object key) {
Objects.requireNonNull(key);
if (key instanceof String) {
return internalMap.remove(normalizeKey((String) key));
} else {
return Collections.emptySet();
}
}
@Override
public void putAll(@Nullable final Map extends String, ? extends Set> m) {
if (m == null) {
return;
}
for (final Entry extends String, ? extends Set> entry : m.entrySet()) {
final String key = entry.getKey();
final Set value = entry.getValue();
if (key != null && value != null) {
internalMap.put(normalizeKey(key), new HashSet<>(value));
}
}
}
@Override
public void clear() {
internalMap.clear();
}
@Override
@Nonnull public Set keySet() {
return internalMap.keySet();
}
@Override
@Nonnull public Collection> values() {
return new ArrayList<>(internalMap.values());
}
@Override
@Nonnull public Set>> entrySet() {
final HashSet>> result = new HashSet<>();
for (final Entry> entry : internalMap.entrySet()) {
result.add(
new Entry>() {
@Override
public String getKey() {
return entry.getKey();
}
@Override
public Set getValue() {
return entry.getValue();
}
@Override
public Set setValue(Set value) {
return entry.setValue(new HashSet<>(value));
}
});
}
return result;
}
}