bridge110

package com.yourpackage;

import org.springframework.beans.PropertyValue;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.config.*;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ConfigurableApplicationContext;

import java.io.*;
import java.util.*;

public class SpringVisualizer implements ApplicationContextAware, InitializingBean {

    private ConfigurableApplicationContext context;
    private final Set<String> currentBeanManualDeps = new HashSet<>();

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) {
        this.context = (ConfigurableApplicationContext) applicationContext;
    }

    @Override
    public void afterPropertiesSet() throws Exception {
        generateGraph();
    }

    public void generateGraph() {
        // Trim the header to ensure no "Line 1" errors
        StringBuilder dot = new StringBuilder("digraph G {\n");
        dot.append("  rankdir=LR; nodesep=0.7; ranksep=2.0; splines=true;\n");
        dot.append("  node [shape=none, fontname=\"Verdana\", fontsize=11];\n");
        dot.append("  edge [fontname=\"Verdana\", fontsize=9, color=\"#666666\"];\n\n");

        Set<String> processed = new HashSet<>();
        int count = 0;

        ApplicationContext currentCtx = this.context;
        while (currentCtx != null) {
            if (currentCtx instanceof ConfigurableApplicationContext) {
                ConfigurableListableBeanFactory factory = ((ConfigurableApplicationContext) currentCtx).getBeanFactory();
                for (String name : factory.getBeanDefinitionNames()) {
                    if (name.startsWith("org.springframework")) continue;

                    if (processed.add(name)) {
                        try {
                            BeanDefinition def = factory.getBeanDefinition(name);
                            currentBeanManualDeps.clear();
                            count++;

                            String color = name.toLowerCase().contains("comet") ? "#FFF9C4" : 
                                           (name.toLowerCase().contains("cpls") ? "#C8E6C9" : "#E1F5FE");

                            dot.append("  \"").append(name).append("\" [label=<");
                            dot.append("<TABLE BORDER=\"0\" CELLBORDER=\"1\" CELLSPACING=\"0\" CELLPADDING=\"4\" BGCOLOR=\"").append(color).append("\">");
                            // FIXED: Header now uses a single cell to prevent overflow
                            dot.append("<TR><TD BGCOLOR=\"#999999\" ALIGN=\"CENTER\"><B>").append(safeXml(name)).append("</B></TD></TR>");

                            for (PropertyValue pv : def.getPropertyValues().getPropertyValues()) {
                                dot.append("<TR><TD ALIGN=\"LEFT\">");
                                // We use a nested table with a fixed structure to keep labels and values aligned
                                dot.append("<TABLE BORDER=\"0\" CELLBORDER=\"0\" CELLSPACING=\"0\" CELLPADDING=\"0\">");
                                dot.append("<TR><TD ALIGN=\"LEFT\"><B>").append(safeXml(pv.getName())).append(": </B></TD>");
                                dot.append("<TD ALIGN=\"LEFT\">").append(extractValue(pv.getValue(), 0)).append("</TD></TR>");
                                dot.append("</TABLE></TD></TR>");
                            }
                            dot.append("</TABLE>>];\n");

                            Set<String> allDeps = new HashSet<>(Arrays.asList(factory.getDependenciesForBean(name)));
                            allDeps.addAll(currentBeanManualDeps);
                            for (String dep : allDeps) {
                                if (!dep.startsWith("org.springframework")) {
                                    dot.append("  \"").append(name).append("\" -> \"").append(dep).append("\";\n");
                                }
                            }
                        } catch (Exception e) {}
                    }
                }
            }
            currentCtx = currentCtx.getParent();
        }
        dot.append("}\n");
        save(dot.toString(), count);
    }

    private String extractValue(Object value, int depth) {
        if (value == null) return "null";
        if (depth > 4) return "<i>[...]</i>";

        if (value instanceof BeanReference) {
            String bName = ((BeanReference) value).getBeanName();
            currentBeanManualDeps.add(bName);
            return "@" + safeXml(bName);
        }

        if (value instanceof TypedStringValue) {
            return safeXml(((TypedStringValue) value).getValue());
        }

        if (value instanceof BeanDefinition || value instanceof BeanDefinitionHolder) {
            BeanDefinition inner = (value instanceof BeanDefinitionHolder) ? 
                                   ((BeanDefinitionHolder) value).getBeanDefinition() : (BeanDefinition) value;

            // Nested Inner Bean Table
            StringBuilder sb = new StringBuilder("<TABLE BORDER=\"1\" CELLBORDER=\"0\" CELLSPACING=\"0\" CELLPADDING=\"2\" BGCOLOR=\"#FFFFFF\">");
            String cls = inner.getBeanClassName();
            String label = (cls != null) ? cls.substring(cls.lastIndexOf('.') + 1) : "InnerBean";
            sb.append("<TR><TD COLSPAN=\"2\" BGCOLOR=\"#EEEEEE\" ALIGN=\"CENTER\"><I>").append(safeXml(label)).append("</I></TD></TR>");

            for (PropertyValue pv : inner.getPropertyValues().getPropertyValues()) {
                sb.append("<TR><TD ALIGN=\"LEFT\"><B>").append(safeXml(pv.getName())).append("</B></TD>");
                sb.append("<TD ALIGN=\"LEFT\">").append(extractValue(pv.getValue(), depth + 1)).append("</TD></TR>");
            }
            sb.append("</TABLE>");
            return sb.toString();
        }

        if (value instanceof Iterable) {
            StringBuilder sb = new StringBuilder();
            for (Object item : (Iterable<?>) value) {
                // FIXED: BR MUST BE INSIDE TD. We don't add it here, we let the parent handle layout.
                sb.append(extractValue(item, depth + 1)).append(", "); 
            }
            String result = sb.toString();
            return result.isEmpty() ? "[]" : safeXml(result.substring(0, result.length() - 2));
        }

        if (value instanceof Map) {
            return "Map(" + ((Map<?, ?>) value).size() + " items)";
        }

        return safeXml(value.toString());
    }

    private void save(String data, int count) {
        try {
            File f = new File(findRoot(), "build/spring-beans.dot");
            f.getParentFile().mkdirs();
            // Using OutputStreamWriter with UTF-8 to prevent character encoding errors
            try (BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(f), "UTF-8"))) {
                out.write(data);
            }
            System.err.println("SUCCESS: File saved with " + count + " beans.");
        } catch (Exception e) { e.printStackTrace(); }
    }

    private File findRoot() {
        File f = new File(System.getProperty("user.dir"));
        while (f != null && !new File(f, "build.gradle").exists()) f = f.getParentFile();
        return f != null ? f : new File(System.getProperty("user.dir"));
    }

    private String safeXml(String s) {
        if (s == null) return "";
        // Extreme cleanup: remove non-printable characters that break Graphviz
        String clean = s.replaceAll("[\\p{Cntrl}&&[^\r\n\t]]", "");
        return clean.trim().replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;").replace("\"", "&quot;");
    }
}