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TemplateOperationsImpl.java
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TemplateOperationsImpl.java
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/**
* Copyright (C) 2015 Red Hat, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.fabric8.openshift.client.dsl.internal.core;
import com.fasterxml.jackson.core.type.TypeReference;
import com.mifmif.common.regex.Generex;
import io.fabric8.kubernetes.api.model.HasMetadata;
import io.fabric8.kubernetes.api.model.KubernetesList;
import io.fabric8.kubernetes.api.model.KubernetesListBuilder;
import io.fabric8.kubernetes.client.Client;
import io.fabric8.kubernetes.client.KubernetesClientException;
import io.fabric8.kubernetes.client.dsl.MixedOperation;
import io.fabric8.kubernetes.client.dsl.internal.HasMetadataOperation;
import io.fabric8.kubernetes.client.dsl.internal.HasMetadataOperationsImpl;
import io.fabric8.kubernetes.client.dsl.internal.OperationContext;
import io.fabric8.kubernetes.client.http.HttpRequest;
import io.fabric8.kubernetes.client.utils.Utils;
import io.fabric8.openshift.api.model.Parameter;
import io.fabric8.openshift.api.model.Template;
import io.fabric8.openshift.api.model.TemplateList;
import io.fabric8.openshift.client.ParameterValue;
import io.fabric8.openshift.client.dsl.TemplateResource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import static io.fabric8.openshift.client.OpenShiftAPIGroups.TEMPLATE;
public class TemplateOperationsImpl
extends HasMetadataOperation<Template, TemplateList, TemplateResource<Template, KubernetesList>>
implements TemplateResource<Template, KubernetesList>,
MixedOperation<Template, TemplateList, TemplateResource<Template, KubernetesList>> {
private static final Logger logger = LoggerFactory.getLogger(TemplateOperationsImpl.class);
private static final String EXPRESSION = "expression";
private static final TypeReference<HashMap<String, String>> MAPS_REFERENCE = new TypeReference<HashMap<String, String>>() {
};
public TemplateOperationsImpl(Client client) {
this(HasMetadataOperationsImpl.defaultContext(client));
}
public TemplateOperationsImpl(OperationContext context) {
super(context.withApiGroupName(TEMPLATE)
.withPlural("templates"), Template.class, TemplateList.class);
}
@Override
public TemplateOperationsImpl newInstance(OperationContext context) {
return new TemplateOperationsImpl(context);
}
@Override
public KubernetesList process(File f) {
try (FileInputStream is = new FileInputStream(f)) {
return process(is);
} catch (IOException e) {
throw KubernetesClientException.launderThrowable(forOperationType("process"), e);
}
}
@Override
public KubernetesList process(InputStream is) {
return process(unmarshal(is, MAPS_REFERENCE));
}
@Override
public KubernetesList process(Map<String, String> valuesMap) {
Template t = get();
try {
List<Parameter> parameters = t.getParameters();
if (parameters != null) {
for (Parameter p : parameters) {
String v = valuesMap.get(p.getName());
if (v != null) {
p.setGenerate(null);
p.setValue(v);
}
}
}
HttpRequest.Builder requestBuilder = this.httpClient.newHttpRequestBuilder().post(JSON, JSON_MAPPER.writeValueAsString(t))
.url(getProcessUrl());
t = handleResponse(requestBuilder);
KubernetesList l = new KubernetesList();
l.setItems(t.getObjects());
return l;
} catch (Exception e) {
throw KubernetesClientException.launderThrowable(forOperationType("process"), e);
}
}
@Override
public KubernetesList process(ParameterValue... values) {
Map<String, String> valuesMap = new HashMap<>(values.length);
for (ParameterValue pv : values) {
valuesMap.put(pv.getName(), pv.getValue());
}
return process(valuesMap);
}
@Override
public KubernetesList processLocally(File f) {
try (FileInputStream is = new FileInputStream(f)) {
return processLocally(is);
} catch (IOException e) {
throw KubernetesClientException.launderThrowable(forOperationType("processLocally"), e);
}
}
@Override
public KubernetesList processLocally(InputStream is) {
return processLocally(unmarshal(is, MAPS_REFERENCE));
}
@Override
public KubernetesList processLocally(ParameterValue... values) {
Map<String, String> valuesMap = new HashMap<>(values.length);
for (ParameterValue pv : values) {
valuesMap.put(pv.getName(), pv.getValue());
}
return processLocally(valuesMap);
}
@Override
public KubernetesList processLocally(Map<String, String> valuesMap) {
Template t = get();
List<Parameter> parameters = t != null ? t.getParameters() : null;
KubernetesList list = new KubernetesListBuilder()
.withItems(t != null && t.getObjects() != null ? t.getObjects() : Collections.<HasMetadata> emptyList())
.build();
try {
String json = JSON_MAPPER.writeValueAsString(list);
String last = null;
if (parameters != null && !parameters.isEmpty()) {
while (!Objects.equals(last, json)) {
last = json;
for (Parameter parameter : parameters) {
String parameterName = parameter.getName();
String parameterValue;
if (valuesMap.containsKey(parameterName)) {
parameterValue = valuesMap.get(parameterName);
} else if (Utils.isNotNullOrEmpty(parameter.getValue())) {
parameterValue = parameter.getValue();
} else if (EXPRESSION.equals(parameter.getGenerate())) {
Generex generex = new Generex(parameter.getFrom());
parameterValue = generex.random();
} else if (parameter.getRequired() == null || !parameter.getRequired()) {
parameterValue = "";
} else {
throw new IllegalArgumentException("No value available for parameter name: " + parameterName);
}
if (parameterValue == null) {
logger.debug("Parameter {} has a null value", parameterName);
parameterValue = "";
}
json = Utils.interpolateString(json, Collections.singletonMap(parameterName, parameterValue));
}
}
}
list = JSON_MAPPER.readValue(json, KubernetesList.class);
} catch (IOException e) {
throw KubernetesClientException.launderThrowable(e);
}
return list;
}
private URL getProcessUrl() throws MalformedURLException {
return getNamespacedUrl(getNamespace(), "processedtemplates");
}
}