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package eu.dnetlib.msro.openaireplus.workflows.profiles;
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import java.io.IOException;
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import java.io.StringWriter;
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import java.util.List;
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import java.util.Map;
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import org.antlr.stringtemplate.StringTemplate;
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import org.apache.commons.io.IOUtils;
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import org.apache.commons.lang.StringEscapeUtils;
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import org.apache.commons.lang.StringUtils;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.core.io.ClassPathResource;
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import org.springframework.core.io.Resource;
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import com.google.common.base.Splitter;
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import com.google.common.collect.Lists;
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import com.google.common.collect.Maps;
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public class RepositoryXsltFunctions {
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private static final Log log = LogFactory.getLog(RepositoryXsltFunctions.class); // NOPMD by marko on 11/24/08 5:02 PM
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private static Resource ifaceTemplate = new ClassPathResource("/eu/dnetlib/msro/openaireplus/workflows/profiles/repo_interface.st");
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private static Resource paramTemplate = new ClassPathResource("/eu/dnetlib/msro/openaireplus/workflows/profiles/repo_param.st");
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private enum Params {
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FORMAT, SET
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};
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public static String buildInterface(final String infopackage) {
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final List<String> formats = Lists.newArrayList();
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final List<String> sets = Lists.newArrayList();
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final Map<String, String> otherParams = Maps.newHashMap();
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for (String param : parseParams(getValueBetween(infopackage, "===6===", null))) {
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StringTemplate p = getTemplate(paramTemplate);
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String paramName = StringUtils.substringBefore(param, "=").trim();
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String paramValue = StringUtils.substringAfter(param, "=").trim();
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p.setAttribute("param", paramName.toUpperCase());
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p.setAttribute("value", paramValue);
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try {
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switch (Params.valueOf(paramName.toUpperCase())) {
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case FORMAT:
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formats.add(p.toString());
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break;
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case SET:
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sets.add(p.toString());
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break;
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}
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} catch (Exception e) {
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if ((paramName != null) && !paramName.isEmpty()) {
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otherParams.put(paramName, StringEscapeUtils.escapeXml(paramValue));
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}
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}
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}
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final StringTemplate i = getTemplate(ifaceTemplate);
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i.setAttribute("id", getValueBetween(infopackage, null, "===1==="));
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i.setAttribute("fileMode", getValueBetween(infopackage, "===1===", "===2==="));
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i.setAttribute("fileDesc", getValueBetween(infopackage, "===2===", "===3==="));
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i.setAttribute("iisWf", getValueBetween(infopackage, "===3===", "===4==="));
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i.setAttribute("baseUrl", getBaseUrl(getValueBetween(infopackage, "===4===", "===5===")));
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i.setAttribute("accessProtocol", getAccessProtocol(getValueBetween(infopackage, "===5===", "===6==="), otherParams));
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i.setAttribute("formats", ensureMinOccurs(formats, "<FORMAT/>"));
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i.setAttribute("sets", ensureMinOccurs(sets, "<SET/>"));
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if (!otherParams.isEmpty()) {
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i.setAttribute("otherParams", otherParams);
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}
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final String iface = i.toString();
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return iface;
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}
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private static String getValueBetween(final String s, final String pre, final String post) {
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if ((pre == null) && (post == null)) {
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return s;
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} else if (pre == null) {
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return StringUtils.substringBefore(s, post);
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} else if (post == null) {
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return StringUtils.substringAfter(s, pre);
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} else {
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return StringUtils.substringBetween(s, pre, post);
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}
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}
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private static List<String> ensureMinOccurs(final List<String> list, final String empty) {
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if (list.isEmpty()) {
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list.add(empty);
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}
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return list;
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}
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private static Iterable<String> parseParams(final String s) {
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return Splitter.on("***").omitEmptyStrings().trimResults().split(s);
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}
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private static String getBaseUrl(final String url) {
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final StringTemplate b = getTemplate(paramTemplate);
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b.setAttribute("param", "BASE_URL");
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b.setAttribute("value", url);
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return b.toString();
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}
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private static String getAccessProtocol(final String protocol, final Map<String, String> otherParams) {
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final StringTemplate a = getTemplate(paramTemplate);
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a.setAttribute("param", "ACCESS_PROTOCOL");
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a.setAttribute("value", protocol);
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if ((otherParams != null) && !otherParams.isEmpty()) {
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a.setAttribute("attrs", otherParams);
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}
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return a.toString();
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}
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private static StringTemplate getTemplate(final Resource res) {
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final StringWriter body = new StringWriter();
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try {
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IOUtils.copy(res.getInputStream(), body);
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return new StringTemplate(body.toString());
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} catch (IOException e) {
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log.error("unable to get template", e);
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throw new RuntimeException(e);
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}
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}
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}
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